I recently means TODAY installed Ubuntu along with Windows 7 means this is a dual boot system.
So this is the case
I installed Ubuntu 11.10 and than upgraded from 11.10 to 12.04 and after installing the updates , Youtube videos are not playing . I'm using CHROME as my primary browser. Flash player is installed by default but still i uninstall it and re install it just to make sure everything is ok. But still videos are playing.
Chrome Version 19.0.1084.56