After the upgrade from Vista to Win 7 (64 bit) I have a couple of annoying issues. One is the sound- whether I am playing music thru Media Player or watching TV through Windows Media Center, every so often the sound "jitters".. sort of a weird stutter.. never happened before. Secondly, my adobe flash doesn't seem to work properly either.. in IE as well as Firefox- I have re-installed Flash and still not working- anyone else have these issues?? any suggestions? THANKS!