I got the .iso directly from the links you both provided (not torrent but direct download from the original site), even re-installed it again, and when I started Emacs to make a shell script and clicked and held the mouse button to move the emacs screen around it made like 100 emacs boxes, a trail of them. It does the same thing with any app I open in there. You maybe correct on the graphics card thing that sounds very logical, I will check that out thanks.
EDIT:::: ahhhh yes, it is a simple setting in the appearance settings, it is right in your face. It says it you have scrolling issues in firefox and other app's click here to fix it. I clicked there and it was fixed lol :) Just made a new shell script in emacs, everything seems good have to try a win xp VM now with the newer BT4 rc1 version and see if it works correctly.
edit:: one more thing, how do I properly shutdown the system, I tried "shutdown --help" but the commands go down the screen to quick to read, is there a way to make the screen go page by page like the CMD /p command so it is possible to read everything?