I am running a Windows 7 x64 machine with an Asus motherboard, AMD FX-8350 Eight-core processor, Radeon HD6450 graphics card, 11 GB ram with two monitors. The problem is audio & video are constantly starting & stopping (very choppy). I have updated my os, flash, java and shockwave. All my browsers are up to date. It doesn't matter if I try to play something in a browser or something I have on my computer using windows media player or vlc... everything is choppy. It is constant & is driving me to drink... Any help and/or suggestions would be greatly appreciated.