Hello everyone, I've been reading on this issue for literally months including on this forum an nothing has helped. The issue is the following, sound is crackling during full screen flash videso 720p and 1080p. Sound also crackles in full screen games. This issue was not present in XP or Vista, same hardware. What I have tried and doesn't help: - reinstall several different audio drivers ----- 3 differend audio drivers from ASUS website ----- Windows audio driver "high definition audio" has no sound, I can't use it - install latest video driver - set to 16bit CD quality - disabled sound enhancements - disabled onboard video - disabled onboard LAN - overclock / disable overcloking cpu - Windows power scheme on High Performance My setup: Integrated RealTek Windows 7 x64 ASUS P5KPL-AM Intel Core 2 Duo E5200 @ 2.5GHz 4GB RAM @ 800MHz FSB NVIDIA 9800GT EE (energy saver edition) -driver 260.99 (lastest as of today) PCI D-Link LAN This issue IS related to Windows 7 as there was no problem with XP or Vista on same setup. It really is annoying as most of the games lag on fullscreen, due to sound, not video. Lowest settings does not improve a thing. Fullscreen flash at 720p and 1080p also lags. When Windows logs in also lags. I have listed most things I can remember, but this is really frustrating as my old AGP single core PC runs more things better... Any suggestions?