Computer freezes when playing videos due to latest AMD Catalyst

[barrytrotter]

Hi, I recently installed the latest AMD Catalyst driver (12.11 Beta), everything worked fine until I run videos on youtube or anything similar and videos in my hd with windows media player (although they work with the KMPlayer), when I do that the computer freezes and I can't do anything but restart it by pressing the start button. I uninstalled the driver and tried with the 12.10, but the problem continues. The only solution I found is to uninstall all the drivers, then the videos work, but my screen resolution changes and I can't put it right. Is there any way I can have the drivers installed and watch videos, or at least solve the resolution problem, without installing the latest drivers?

Thanks in advance

 

[barrytrotter]

My specs are
Windows 7 Home premium 64-bits
AMD Athlon II X2 220 precessor 2.80 GHZ
ATI Radeon HD 5450