Hi guys, I'm totally not sure where to post so I guess I'll post it here. I have a rather weird problem. Whenever I load counter-strike 1.6 from steam, my computer starts to give a low pitch humming sound. When I alt-tab, the sound stops. When I go back to the game, the sound starts again. I'm not even sure where the sound is coming from. Anyone has any idea? I don't have such problems with other fullscreen games, just this. Computer specs: ASUS P55 Intel i7 870 4GB Kingston HyperX Saphire ATI 6870 2x WD Caviar Black 1TB HDD CM Silent Pro Gold 650W CM HAF 922 ATX Casing Your help is much appreciated, thank you!