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05 Mar 2010  

windows 7 professional 64 bit
RADEON™ HD 5770 driver install problem

have a (virtually) brand new pc with windows 7 64 bit. The graphics card is

After switching my pc on today and trying to play a dvd i get this error message

'Windows media player cannot play this DVD because there is a problem with digital copy protection between your DVD drive, decoder and video card. Try installing an updated driver for your video card'

The exact same DVD played perfectly well yesterday.

Ive downloaded the latest driver from the graphics card website and tried to install it, but I get this error message

'CATALYST install manager has stopped working'
A problem caused the program to stop working correctly. Windows will close the program and notify you if a solution is available'

I tried running it in compatibility mode and its exactly the same

I even tried to install the original driver that came with my pc, and I got the same error message.
My System SpecsSystem Spec