If it has, right click it, and select "disable", then reboot.
Another problem it could be is that your graphics card is an OEM model.
If so you cannot use the generic AMD catalyst divers you have to use the drivers from your computer/card manufacturer.
Try the driver disk supplied in the box, if that don't work try and download the latest one from your card manufacturer.
problem resolved. what I did.
First . I updated windows 7
Second : I removed one card from pcie slot ( long one) and used another one with rinser 1x16x since then all gpu's were detected.
Thank you for all ideas.
kind regards
novymivo