I recently acquired a lovely original 7800GT for my Dual Core G5. It will ultimately end up in my Quad when I eventually get one. It is working great and runs games like AOE III and Quake 4 without any trouble. The funny thing is though, it will not work with DVI-VGA adapters. The monitor will light up and detect a connection, but it never actually displays any image. DVI monitors work perfectly, and I have tried different DVI-VGA adapters and only got the same result. Is there something I should know. At the moment I have to connect any VGA monitors to one of the ports of the now secondary 6600LE. Question: are images on the secondary card still processed by the primary GPU in this case? Or are they both totally seperate? I would have assumed the former, but HD video playback is way better on monitors connected to the 7800GT. When I drag them over to a monitor on the 6600LE, the frame rate halves. Also: Due to it's age, somebody mentioned something about reapplying thermal paste? Is that worth it? As well, are there any drivers I need to download in particular, or does Leopard already have everything needed? I couldn't find any 7800GT drivers for mac online.