Sorry if this post exists somewhere, but: Anyone else having an issue with connecting monitors to a MacPro? My problem is this. I want to use the DVI cables to plug into the Geforce 7300 GT, when I do plug them in, nothing happens. No picture. However, if I use a VGA cable and the adapter to DVI, it works. It's weird, because the MacPro let me use straight up DVI cables before. Am I missing something? Does something need to be reset? I tried zapping the PRAM and Repairing Permissions and got nowhere. Any other tricks? Running a MacPro 2x2GHz Dual-Core Intel Zeon, 6GB Ram, OSX 10.5.8 Any help would be greatly appreciated.