I just replaced a 9600gso with ATI 5670, all is working except the games are stretching along the screen which looks ugly.. with the 9600 the games were square with 2 black bars on the side, is there anyway to make this with 5670?
If the game supports it you should be using the native resolution for your monitor.
Failing that in the catalyst control center you want to go into the gpu scaling settings and tell it to maintain the aspect ratio.
1. Choose 'Advanced' in the Welcome Screen, then click Next
2. Expand the 'Digital Panel' section which is below 'Display Options' under Graphics Settings.
3. It defaults to 'Attributes'....
3a. Check off 'Enable GPU scaling'
3b. Select 'Maintain aspect ratio'
4. Click 'OK' or 'Apply'