Originally Posted by iampoor
Are any of your IRQ or DMA channels messed up?
It isn't 1994 anymore, Windows has had the ability to manage its own IRQ's since Windows 95, and the OP is useing Windows XP. There's absolutley no need to go messing aournd with IRQ's as Windows XP is perfectly capapble manageing them with its Virtual IRQ library.
Originally Posted by SPIK3
Do you guys thinks the card is damaged or what can the problem be??
There's three things I think you should consider, given the information you provided.
Seeing as its second hand on ebay and you're haveing issues installing the drivers I'd say the card is screwed. Just because its possible to install them in safe mode doesn't matter as your graphics card isn't being used at this point. Rendering is done by the CPU itself under safe mode useing generic display software and the output is simply put through the graphics card's analogue/DVI port.
Apart from the conclusion that your card is screwed it is possible that previous ATI drivers could be conflicting, though this of course would only apply if you owned an ATI card prior to upgradeing and neglected to install the drivers for it.
Its entirely possible that your RAM has developed faults, download and run memtest86+ to rule this out as a faulty DIMM can bring up the same symptoms.