BAD computer out of the box - HELP please

My HELL with the XPS 1730 started when I had problems with my previous computers and instead of following the REFUND (that probably would not HAPPEN) route- I was talked into upgrading to the top of the line xps 1730 that would never have the problems of the inspiron 1705 (x2) or the vostro 1700 (1)- That would make it MAY 2008 I had power problems from the begining- they shipped out 4 powersupplies- said it was the operating system shipped out Hard drives and in July it was sent to depot with cracked screen. The Depot techs were supposed to check out the whole system including the power on the motherboard and the powersupply-

When I got it back the power problem was still there plus some- there was NO paper explaining exactly what the Depot techs did to my computer-

Needless to say, I had 3 motherboards, multiple video cards, HDs, and just about every part replaced at least twice. By October, I was demanding that dell replace my computer with one that I researched and felt would work- upgraded cpu with an agreement that if the computer needed a replacement video card- I would allow it to be replaced one time- then DELL would upgrade the video card to the Nvidia 8800 M GTX, It took over a month to get the computer sent to me.
I received the computer NOVEMBER 24th, 2008- with high hopes- this computer disapointed me also- multiple motherboards, multiple physX card-
Within 1 month the video card was being replaced and within 2 wks of that problem- The video card needed to be replaced- DELL reluctantly replaced the video card with upgraded one (thank goodness for written agreement with DELL REC)
Unfortunately- by Christmas the computer was having more problems and it was replaced in February and I received the replacement on March 4th, 2009.

Now the computer I received on March 4th, worked okay for about 1 1/2 wks then the graphics problems that were hit and miss (scrambled screen on restart- the screen was partially scrambled just after the windows icon comes on and just as the log on USER icons come up) became more noticeable- I called DELL- got some assistance - then was told to monitor to see if the problem returned- I emailed the tech to say that it was back- Did some further trouble shooting with Dell tech- Then within 2 days- on the way home from school my daughter takes the computer out of the backpack to log onto the internet for a meeting- the computer started smelling like it was burning- When I got home I immediately emailed the Tech and said I was concerned about the burning smell- He called back and said a new replacemnt would be sent. This was on March 31st. Computer was ordered April 1st, 2009.

I received this NEW replacement computer on April 11th,

When I got the computer the top box in the shipping box was open and at an
angle. The discs and powersupply and other external parts WERE out of
place. Also there was a third piece of carboard. It was just stuffed in
the box. I am not sure the purpose.
I opened took that MESS out of the box to get to the NEW computer. I took
the computer out of the box an proceeded to set it up.

I called Monday afternoon to DELL tech expecting to have someone help me- I was told that it looked like i need a replacement screen and possibly a replacemnt motherboard and video card.
I was livid!
then i was told that the tech was checking into a replacemnet computer as it could have been damaged in shipment.
then I was told that the tech could NOT help me as REC was handling the case.

I sent the following to the Dell tech that had been helping me Sunday afternoon-

I received my NEW computer yesterday late afternoon. I am quite frustrated
because the same video problem that happened with the 6th computer - is
occurring.
If I restart the computer, when it starts back up, just after the windows
emblem comes up and just as the logon icons come up- the screen is
SCRAMBLED- the WHOLE screen is scrambled!!!!

This computer is 1 day old and it is a piece of junk I have repeatedly
received

BLUE screen errors

Ageia PhysX ERROR
PhysX hardware found, but it did not reset and initialize
properly:0x00000030

I expect SOMETHING to be done IMMEDIATELY to RESOLVE this problem.

I then sent the following Sunday late afternoon to the Tech as well as my contact in REC who has been kind and helpful in the past-

I have reset my computer to factory settings.

I still get the PhysX Error
PhysX hardware found, but it did not reset and initialize
properly:0x00000030

I had major problems updating windows- after installing the updates and
needing to restart- the computer then said that the updates were not
configured correctly- and was uninstalling the updates.

The hard drive is running HOT- If you touch the harddrive cover- it is quite
hot.

I expect SOMETHING to be done!

This is what I sent Tuesday Night to DELL tech and my REC contact-

Basically, what I am asking is to look into the status of this case and
help solve the problem. I trust you and your judgement as you have helped
me in the past . I am using the case # [removed] for this replacement
computer as I do not have a case number for this problem. I spoke with Dell
Tech yesterday, but I was NOT given a case #. Today, DELL tech MIKE called
and said that REC was handling this case
Service Tag: [removed]
Computer XPS M 1730 received April 11th, 2009

Short version of Problem-
1. As I wrote to you earlier, (two emails sent Sunday April 12th,
2009), I have had problems with the physX driver- see email for specific
error-
A. To attempt to fix the error, I deleted the driver and
downloaded a fresh version from the Dellsupport.com website. This worked.
Three times.
2. As mentioned in the previous email, I am having the same scrambled
screen as I had on the previous computer. I spent all day yesterday
testing out the various drivers for the 8800 m GTX SLI video card. Using
the original video driver, 167.55 and original phys X driver- screen is
scrambled on startup- Screen scrambled with SLI engaged.
To eliminate hardware issue, I hooked up the computer to my 42in flat
screen monitor- I duplicated the settings and low and behold there was NO
SCRAMBLED screen even with SLI engaged. and with different drivers
installed.
Conclusion is that monitor on Laptop is defective. Possibly damaged in
shipping-
Question1: How to resolve this problem

David, you have been helping me since December. You have gone out of your
way to assist me in keeping a working computer. I trust you will do right
by me and resolve this problem. My whole goal is to to have a working
computer that will last 3 years and not need to be replaced. I will await
your advise/solution. I do have photographs of the scrambled screen as
well as the problems loading- ie the various shades of gray that took the
place of the scrambled screen.

The computer that this one replaced will be shipped back on WEDNESDAY this
week.

Please just keep me informed.
Thank you in advance,
[private contact information removed]

Additional information

I called Dell yesterday to get this resolved and was basically The DELL
tech told that possibly the video card, motherboard and monitor would need
to be replaced on a computer that is brand new. I was VERY upset. Then I
was told by the tech that he was checking to see if a replacement could be
sent because it could have been damaged in transit. Then I was told that
he could not help me because it was already being handled by REC. He said
Ryan had the case. The big problem is that I was not given a case number to
refer to.

I am asking for your help again.

I recieved the computer March 4th that you assisted in getting to me as a
replacement. However, that computer has had problems. The computer started
smelling like smoke and a replacement computer was ordered on April 1st. I
received the computer on April 11th.
The following information describes the state of the computer and my testing
of it to figure out what is wrong. I called yesterday because my testing
showed that I did all the testing I could do
Problems
1. PhysX driver- resolved by deleting and reinstalling driver
2. blue screen errors.
3. hard drive runs hot to touch
4. scrambled screens when restarting computer- just after
windows icon comes up and just before log on icons come on screen
5. Problem progressed to complete black screen, flashing to
several different colors of grey before the log on icons.
6. Problem progressed to extended time to startup the computer
between the time the green loading bar come up to the time that the windows
icon comes up and more flashing of grey screens before the log on screens-
7. problems updating windows-- Microsoft .NET framework 3.5
Service Pack 1 and .NET framwork 3.5 Family
update (KB951847) x86 seems to be the cause - when I did update Important
updates there were several updates for vista and I needed to restart the
computer - It came up with black screen with numbers and files like it was
loading or update but then when it was almost finished it stopped and it
came up and said-"the updates did not load correctly- reverting back - To
get around this i installed one update at a time starting with the regular
vista updates - everything loaded fine until the Microsoft .NET update. I
did not load it. This problem reappeared after resetting computer to
factory settings twice.
Testing steps
1. test video driver
2. monitor temperature
3. monitor if fan works
4. test monitor by hooking up computer to 42inch HDTV to
eliminate video card problems
5. reset computer to factory settings to see if these problems
were caused by something I installed.
( I reset to factory settings 3 times- each time same
problems occurred)
6. Called Dell Tech support - told to do basic hardware test fn
power- did not finish test because I was told that by the tech that the
problem was being handled by Ryan in REC -
7. Dell Tech Mike (could be Mark?)called to say that he is
owning this problem and REC is handling the problem. This tech did not
give me a case number
__

I am so tired of being put off- I need either a REFUND or a REPLACEMENT-
HELP PLEASE-