Hey. I've just experienced a rather odd problem. Whilst playing Half-Life 2 (this was almost directly after a level change) the ingame sound suddenly became horribly corrupted - static, fluctuation, the works. I figured it might be a problem with my audio drivers or something, so I closed HL2 and quit back to the desktop. Now I start to get worried - the desktop is flickering in a very odd manner. Not artifacting, just flickering, kind of like a bad signal on a TV. At this point I did a hard reboot and it seems to be back to normal. The only hardware change I've made recently is the installation of a new X1950GT, and it hasn't done this on any game before. I took some GPU readings after I quit, and they read at around 40 degrees C, which doesn't seem too bad. I don't overclock (CPU or GPU), and I have plenty of case cooling. Any ideas what might be up? Specs: AMD Athlon64 3700+ @2.2GHz 1gb OCZ Gold ASUS A8S-X Sapphire Radeon X1950GT 256mb SoundMax AC'97 Audio 2x 160gb HDDs (One Maxtor, one Seagate) 1x 36gb WD Raptor Samsung LightScribe DVD+/-RW Enermax NoiseTaker 480w PSU 19" Daewoo WS TFT @ 1440x900 CoolerMaster Centurion 5 Case Cheers.