Youtube, Flash sites crashes pc to black screen

[doug68]

this has been happening for past few months. Either on youtube, or a site with flash..crashes video driver and it recovers, but most the time the screen goes black and have to restart. Ive updated video driver, rolled back to older versions. Same result. Updated flashplayer..tried older versions, still same result. Does not do it playing games. Can do it at first start up, so doesnt seem to be overheating issue. very annoying.
System: win 7 64-bit
intel core 2 duo e8400 3ghz
8gb ram
nvidia geforce gtx 9800 plus
thermaltake 550 watt

 

[doug68]

wow, no replies. Well i uninstalled my java, flashplayers and whatever else i thought could be it. and still crashes. guess ill try swapping a video card next

 

[canadian69]

same issue, no so,ution yet, tried the same stuff with flash and java.
nvidia gts250 win 7