Posted 15 July 2006 - 08:29 AM
Try playing a full screen video what happens, have you tried configuration from the windows display properties it has in the past for me been able to override the CCC settings. I would also update your drivers but do so with omega drivers i find them easier to work with and have more options available.
You might need to adjust the properties make sure that the second display is being given the correct resolution and frequency of signal, try swapping the cables as well, are these both DVI monitors or is one AGP.
Also what OS are you using 2000 or XP. Have you tried all the troubleshooting guides at ATI for dual monitors.
Have you remembered to remove old drivers fomr the system you should use driver cleaner to do it, google for it, boot to safe mode and run it tiwce to get rid of any video related drivers.