Hello, i'm useing Radeon hd 5670, windows 7, latest drivers. but every time i try to play any new game like BF3, Warface, Diablo3, it stop working for 30seconds. than in Windows i see tray icon "AMD drvier stop working, but was retored succesfully" > after this message i can play again from the same place where i got that "LAG"...it's rly annoing coz i always killed > that mean only picture "LAG", not proccesor. What can it be? help me please.

First I would make sure to clean all the vents, fans, etc. of dust. Then try this > http://forums.amd.com/game/messageview.cfm?catid=444&threadid=161193&enterthread=y

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yeah, all fans are cleaned, changed everything like you said, but still same ;(