I'm going on 2 months now, pulling my hair out at this point with an issue(s) I cannot seem to solve. here's my symptoms, my specs, my steps so far to troubleshoot. Any help is appreciated. Symptoms: My video is choppy, jumpy or fast playing in QuickTime, and Media player freezes or won't play at all. I CAN play a DVD using Media Player just fine. Audio files in SoundForge are also a little jumpy at times, but not as problematic as the video problem. But it is noticable. My webcan freezes as soon as I connect to a Skype call, or if I simply pull it up to view it. I've installed Win 7 ultimate on an HP 64bit AMD Phenom 9650 Quad Core 2.30GHz with 8gig RAM. I am running duel monitors and have no ! marks in my device manager. My display driver is a ATI Radeon 3200 Graphics. I have a HP delux webcam KQ246AA running the updated current software for win 7 from HP. My sound controller is a Realtek HD Audio. I have ran Driver Checker and it says all my drivers are up to date. I've tried reinstalling QT and have played with the direct sound option with no change. I am 99% certain it is not a virus issue as it had the problem since day 1. I am also pretty good about virus protection and cleaning anything I do get, when I get it. I am currently running AVG, Spybot, and use CCleaner about once every week. Any ideas?