display driver stop responding???

hi,

i got problem..

sometimes appear message at bottom right
"display driver stop responding, n windows can repair it"

i noticed when i'm running DX10-dx11 applications

i truly believe when run sisoft sandra benchmark,
video memory test, when select dx11, dx10a, dx10
when progress 50% monitor blank (black) and appear
"display driver stop responding, n windows can repair it"

when i chose benchmark dx9c no problem

then i run dirt2, the game hang when i press enter..

run 1080p movie using haali filter, hang too..

anyone know how to fix this..?

thank you very much..

What brand of video card and model? ATI or nVidia? AGP slot, onboard graphics or PCI-E slot?

Are you running the latest drivers?

You need to be more specific.

Also if your video card is not DirectX 11 capable, there is no use running DirectX 11 tests on it.

i7 860
gigabyte p55a-ud3p
g.skill 4gb pc 12800 trident
caviar black 1TB
sapphire 5850 toxic (pci-e 16x)

windows 7 ultimate 32-bit

latest driver 10.3 older drive 10.2 older driver 9 (all same)

how to fix it?

Your ATI Radeon Card should work fine with the v10.3 driver.

You might want to go to the ATI Gamer Forum at the ATI website and see if there are any issues similar to yours, there may be a fix there.