sklarface

hey, im using an acer laptop with an AMD Athlon X2, 3gb of ram, and nvidia GeForce 9100m my computer has recently started skipping and its beyond annoying. my music, games, applications all skip. my mouse even lags. i've updated my video and sound drivers. scanned for viruses/spyware ect. completely clean i cant even run itunes and my internet browser at the same time without it acting up. your help would be greatly appreciated. thanks.