Hi all, A couple of days ago I bought a 6800GS to replace my outdated 5700FX. However, I am getting terrible FPS rates in games, by all means far lower than I should be according to all the benchmarks I've found online. In Half-Life 2, for example, my average is around 20-30, when running on 1280x1024 (my LCD's native resolution), with all graphics options on High, and AA and AF turned off. All the benchmarks I've found show around 60-70 average on these settings for this card (and even the vanlla 6800). I should also note that lowering graphical settings in the game / application itself doesn't always improve performance for me. It's as if the card doesn't recognize the changes that I've made. Same thing is happening with Oblivion, which I bought a few days ago. Out of five times that I load the game up, without changing any graphical settings, four will give me low frame rates and one will give me good frame rates. Lowering the graphical settings doesn't help at all, most of the time. My specs: Pentium 4 3.0Ghz 1 gig RAM 500W power supply (18a on the +12v rail - should be enough) Intel D865Perl motherboard My graphics drivers are updated and I recently defragged. I wanted to update my motherboard chipset drivers, but couldn't find any for download at the Intel site for my chipset (North Bridge: Intel Springdale i865PE; South Bridge: Intel 82801EB ICH5). Does anyone know what could be causing this? I'd appreciate any help.