tady posilam funkcni reseni

1) Install Catalyst 10.2

2) Set the sleep timer to a short time (I did 'after 2 minutes')

3) Restart computer and get the garbled screen.

4) Let computer go to sleep, wake it up and screen magically works for a while.

5) Go to 'display adapters' in the device manager and reinstall 'ATI RADEON 9600 Series (Microsoft Corporation - WDDM)' **

**(note: this driver had already been installed before I installed catalyst but mysteriously disappeared after catalyst was installed)

6) Restart computer and done.