[ubuntu] Flash Video and Audio Stuttering

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http://ubuntuforums.org – I have been using Ubuntu 11.10 since January and its been a smooth ride but now my flash player is behaving as if its playing media from a dvd with lots of scratches on it. Its not a buffering issue as i have decent bandwidth... I am completely clueless.. I have removed the flash player plug-in and re-installed it ... The problem persists... I'm facing the problem with firefox as well as chromium .. I have also tried the flash-aid extension for firefox but nothing seems to work... I thought that if i upgrade my os to 12.04 the problem might go away but its still there. (Hardware)