I would also like to know about this.
I may not be writing about the same issue as above, but Visual Studio 2008 has altered my code on a number of occasions now. The latest time it altered me code, it broke the CSS layout of an ASPX page by inserting an extra /close div tag.
This caused the entire remaining content below this extra tag to spill all over the page, outside of the container div.
VS has also taken the liberty (on a few occasions) of rewriting some code in my unordered lists requiring me to rewrite them each time. As a countermeasure I have simply taken to saving two or three different backups of the page as I build, which I recycle periodically (because the last time there was an uncalled for code revision I was unable to 'undo' it.)
I would love to find out how to turn this code rewriting feature off if I am able to, or is this just a program glitch without a fix at this point?
Thank you,
-Sean