The sound lags when I for example scroll in Internet Explorer, it seems like the computer is giving priority to other processes than the sound process, I say this because the lag only occur the first time I scroll on a newly opened web page, the next time the information is cached. In programs though, like Ableton Live, the sound will lagg for a millisecond everytime I do something that requieres the CPUs muscles, even though its very small things. I've tried three different sound drivers from Realtek (also the one Windows installs automatically) I've tried setting the priority of the sound process. I've tried changing the sound quality from "Studio" to "CD" in the RealTek Control Panel. I've tried disabling all the "sound effects". Nothing works... ------ Software: Audio Driver Version: 188.8.131.5254 Audio Controller: HD Audio Audio Codec: ALC885 Hardware: MacBook Pro, 2,93GHz 4GB RAM Have not found info on the soundcard, I guess it's integrated in the motherboard, can't find which motherboard they use but I'm pretty sure it's a Nvidia nForce Motherboard, as it appears on the "Device Manager" under "System Devices" as NVIDIA nForce PCI System Management. Anyone have the same problem and a solution?