Can anyone help me this is driving me bat! I'm using Firefox 16 64 bit and whenever I play any video my mouse cursor gets very laggy and choppy, especially when moving the cursor over the video itself. I'm completely updated with my Adobe Flash and FF but it still happens. I never had this problem in FF 15. Is there some way to downgrade without losing my settings and stuff?

hi Geekdroppers I'm hoping that you can help me solve ths problem that I've spent weeks trying to sort out. I've just about lost my mind trying everything. The best I've seen searching all the computer help sites Google shows me when searching for this is to delete or rename the operaprefs.ini in C:\Documents and Settings\{user name}\Application Data\Opera\Opera, which does solve the problem, HOWEVER, it also trashes all of your other settings and customizations, and extensions you have had installed. This wasn't acceptable to me for what seems like a relatively trivial problem.