I have a Toshiba A200-1GB with Windows 7 x86. I tried every ATI drivers, new and older, and the screen becomes weird, ATIKMDAG fails and recovers until BSOD comes up, then when I restart the laptop screen keeps black, I can only see the screen by connecting external monitor, however the same glitches appear on that monitor, so I believe that it's not a screen problem.
I'm running windows 7 now with built-in drivers only (from windows update), and I played a game for 1 hour with no problems, if I install catalyst with latest drivers it keeps doing the same, so basically I would like to know if this is a hardware problem or software problem. The GPU temperature does not pass from 47ºC.
Please check the 2 videos that I recorded with fraps on dropbox. When the video becomes whole black, that's when the ATIKMDAG failed and got recovered.
Videos link: https://www.dropbox.com/sh/bmtm437o3rsost6/PkllwdMSNy