I recently picked this generic-looking ISA CL-GD5429 card off eBay since Ive read its one of the faster ISA cards. Unfortunitly when it arrived, I discovered it had some issues when displaying. In POST and in DOS itself, it looks fine but in games and Windows I get these lines through the image. My guess is its memory related but before I attempt a return I wanted to see if there's a possible fix since it's an uncommon card. I can't find this particular card anywhere, could it been a modern reproduction?