This is a problem I've been having for over a year, and still have not found a fix to. What happens is that when I play any Youtube video, the video plays for like a split second, then Youtube starts to automatically change the quality lower and lower, each time it changes the quality the video restarts, and when it's down the the lowest quality the whole Flash player crashes.
I have read about this issue on Adobe's community where many tips have been suggested such as reinstalling the flash player, turning hardware acceleration off, among other things. I don't believe I have ever seen anyone saying that performing these tips have helped stopping this problem, I have not been successful with it either.
I don't know if this problem is isolated to Windows 7 or not, because I do have a Windowd Vista computer where I don't have the problem, but on all other three computers (all Windows 7) i have the same problem.
Any suggestions what to do? Thanks for reading.