On version 0.9.20.10711, which I've been running since whenever I d/l'ing it, I was getting choppy playback from tv show websites (ex:NCIS using CBS's stream). I have no idea what caused this. 2 weeks ago, it worked w/o issue. Perhaps the forced upgrade to Flash 10.1 for another reason caused it. No idea really. Checked the forum here and there were no search results for Flash 10.1 when I attempted, my dpi is normal 100%, run other things fine including the shows from websites directly.
In the end I ended up d/l'ing the newest version and installing to c:\users\public and running as admin (as I run every game or media program).
Just thought I'd report in case someone else noticed a problem where things used to be fine and wondered if it was just them. GL to anyone who tries to get answers on these boards.
AMD quad core Phenom 9550 2.2ghz, 6 gb ram, Win 7 Ultimate 64bit, ATI 5770