Dell doesn't check its facts and its techs are stupid

The ATI 2400 XT video card in my dell inspiron 530s is incompatible with my Dell 3007 WFP-HC (purchased on same order). The video option under the Inspiron 530s configuration page says that the 3007 is compatible. However, compatible does not mean that it will drive the monitor at its optimal resolution. When I purchased the computer I explicitly asked the sales agent if this card would work with the 3007, and the sales agent affirmed that it would work.

I tried to resolve this issue with Dell tech support. One technician insisted that the problem was the video card and insisted on sending a replacement card of the same model. So I have another useless component headed my way. After reading the manual it became clear that the 2400 XT is not compatible with the 3007 at 2560x1600, so I again contacted Dell tech support and showed the technician the link to the manual. The technician told me to contact customer service but customer service is not open on weekends. I had to go to Walmart to buy a video card that works!!!!!!

I want Dell to refund me the cost of the video card option. I will happily return their junk card to them.