im having exact same problem on windows 7 using firefox :S
Reinstalling didnt help
Thought it may have been my internet speed but pausing it for while an letting it buffer didnt work, an the video bar showed a much larger amount of the video as loaded
seems to be working for me so far
Using build 11.7.700.191
Ill edit this later on to say if its still working
Hope it helps link too, its an incredibly annoying problem
-so far its still working:) tho i get a pop up box now an then for acer saying flash isnt upto date but i dont mind that lol
Message was edited by: fredfred400
I am getting this problem as well on Windows 7 (64 bit) in the Opera browser.
It started with the most recent update to flash player. I will try the beta drivers.
It doesn't happen every time, but it does happen often.