i have tried moving the card to every slot available
Does this mean free slots?
When it come to motherboard I'm no real big expert but it seems with all the ones I've owned the slots will start sharing.
Like the last two I've owned the two slots are on the same irq as the agp.
You can change the irq in the bios but they all change to the same irq.
If you try switch your card around you might find some that can share better.
Another thing, when switch cards around if not done carefully you will get alot of junk hardware registry listrings.
These can cause problems too.
Also you might want to check the drivers and thier inf file path/name.
http://www.thegorx.net/Windows/Help/Hardware.htm
Also you might want to check your video software for patches or updates.
I know installing new video cards can have problems if you don't cleanup your old video software drivers first.
After hearing problems like this makes me think if I ever get such a device I'll get an external one.
Any way good luck
TheGorx
http://www.thegorx.net/Windows/index.htm