Clicking "Edit Page" immediately deletes a bunch of the content! Not good.

I built a table in Word2007 and saved it as html. I opened it in FireFox and saved the source code. Then I opened my Front Page, opened the editor and switched to Classic Mode. I pasted the whole code set into an area near the end of the Front Page code. when I saved it all the original Front Page content was there. Ok, so far so good.

I saw some issues to correct and clicked "Edit Page" and in a blink the edit interface opened without all the content that had been on the page before the new code was pasted in. Yikes!

I was able to restore the content with the history interface (Whew.. thanks you, pbwiki) but I duplicated the steps AND the problem occurred again. I hit the back key and got the content back in this case because I hadn't saved.

Others have written about problems switching editors, I believe. What happened?

Jonathan