I've had three STB Black Magic 3D Voodoo 2 cards for quite awhile now and finally got around to testing them. Two seem to be working just fine, but one will not display any 3D content. When installed the system recognizes it normally as a 3D multimedia device according to Device Manager (Windows 98), but whenever I launch a 3dfx game (tried Unreal, Need for Speed II SE, and Need for Speed III) I just get a black screen, and I have to ctrl+alt+del my way out. When launching the same games, the other two cards work fine when installed. All three cards are identical, 12MB versions. I have moderate soldering skills so if replacing any ICs or memory is in the cards I should be able to do that, just curious if anybody has an idea where to start looking for possible damage, and how to troubleshoot.