I've had my acer for a while now and I've noticed a serious, sudden reduction in performance and issues with sound. It's taking significantly longer to boot up and always seems to be running something. I went through the start up via msconfig and disabled any sort of application that would slow it down. When any sound is played, either through itunes or just the shutdown jingle the sound seems to stutter. It's only started doing this recently. The only thing I have downloaded recently is AVG 2011 which I have since removed. I'd rather have a virus than that program. It was constantly doing complete scans and I had never ending pop ups asking me to upgrade. I haven't really done anything of note recently so I'm at a loose end here. If anyone has any suggestions I'd gladly try.