my friend gave me a graphic card ((ATI RADEON model AIW 8500dv. 64 mb i think)) anyways, so i put it in my comp and when i turned it on, it was black and said "no signal" so then, i checked out some forums and i disabled my current card ((SiS 630/730)) and then retried putting it in, but still no luck. is it the card thats broken? or is it not compatible with my comp? my comp doesnt have an agp slot so i stuck it in some other one, im pretty sure it was the right slot, since it was the only one that worked, anyways, any help would be great, thanks u guys.