Ubuntu 9.04 Flash video, but no audio
I have recently installed Ubuntu 9.04 and am enjoying it a lot. The only problem I seem to have is that on any flash video (youtube, liveleak, etc) the video will play just fine however there will be no audio.
I have done some searching and found that this is a common problem, however I have yet to find a solution for it. Would upgrading to 9.10 fix this?