You can also run:



Xorg -configure


to create and more custom xorg.conf for your machine. Your mileage may vary on it getting the best drivers sometimes but it usually does a good job. ...

Try updating your video driver. I have the same/similar problem on my ATI HD 5620 using the native Backtrack drivers but once I get the driver from ATI installed that problem goes away. *Just a...

I posted a reply with the procedure I used but for some reason it won't come up.

chmod +x ati-driver-installer-11-5-x86.x86_64.run
./ati-driver-installer-11-5-x86.x86_64.run

Follow the installer wizard.
reboot

when it comes back up run the following from the console:

...

This does work but logging out and back in again, the problem will return. Also can't launch apps after login (Ex. Konsole)