[Cube] radeon 9200

[Eric Sloth]

Hello
I recently installed a ATI 9200 graphics card in my cube with drivers 
and ATI's update 4.4.2
The video 'blinks' odten... kind of flickers every 5 seconds or so
I've zapped the PRAM
I have a 22" cinema display and  a DVI-ADC adapter    1 GHz machine

Any fixes?

Eric