i have currently been presented with the issue of youtube not working on certain types of machines, on our dell optiplex 755 machines, youtube will not work properly, i have narrowed the problem down to Adobe flash. everytime i tried to play a youtube video it would usually just give me a black screen with an error message, after i tried a couple solutions i thought i had fixed it, i can now play some youtube videos and not all, for example i can play 5 in a row and after that, not many videos will work.
the machines are running windows 7, have adobe 11.9, Internet Explorer 9 and the graphics drivers have been updated.
does anyone have any solutions??