I'm using XP/SP3 and Hercules Deluxe Glass Webcam on Skype. Picture on receiving end is very pixelated/grainy, almost unusable. Reasons presumably include innate webcam quality and variabilities of Skype transmission. Skype also says that CPU must be at least 2.5 Ghz (mine is 1.8 Ghz). Does that make sense? I'm surprised there would be such degradation at 1.8....don't other folks run webcams at less than 2.5? I'm hesitant to buy a better webcam if that 2.5 is real.