vangivang > 'I also tried playing around and making different configurations in Catalyst. The manager for ATI gfx cards.'

What settings did you change in Catalyst? You should turn off induvidual settings for each app and keep it universal.


vangivang > 'still nothing helps. I'm not sure on how to pull out the gfx card out of the iMac... So I'm not sure how to test the card on a differnt computer. I did check a differnt computer and a differnt ATI card. Got the same problem.'

You can't put a mac card in a pc, the slot may be the same but it uses a slightly different protocol...

I use ATI, absolutely no problems except the quality isn't as good as FireGL or Quadro.