Hi everyone I have been having a small problem with a physics card that I recently bought and feel that i should look to here for help. Current hardware ASUS striker extreme motherboard Intel Q6600 CPU 2x Nvidia 8600 1Gb graphics cards 2Gb Ram (I cannot find the make) one 500 Gb SATA hard disk Arctic power 700W PSU Supreme FX sound card Windows Vista Premium 64bit Actual problem I put this PC together myself a few months ago and have never had any problems with it. All the games run fine aside from the fact that the physics just doesn't happen. I have tried running the physics on the CPU but it shows no difference (mostly the game I try to use physics in is UT3.) When I put the card in my 3D Mark 06 score went up by about 1000. and for some reason my windows experience index went up for the graphics. The power is obviously getting to the card because the lights always show up on it. Also the card shows up in the device manager and passes all of the tests with the Nvidia PhysX control panel but when i try to run the demo game that came with the card it says 'No AGEIA PhysX hardware detected. Please check installation.' I have tried the card in both PCI slots and have always checked that the power is plugged into it. Temperatures I don't think that temperatures are a problem but here they are anyway CPU 29C idle 35C under load Both GPUs run at about 60C at idle or under any load. I always run my system with the case cover off because I have no air intake fan. I never get any error reports or major crashes during games it is just that the physics doesn't appear in-game. Please could someone advise me on what I should do.