Can anyone give me some help please?

Since last week, I have not been able to play videos in full-screen mode on YOUTUBE or BCCi player. Most of my Mpegs I have saved to my PC seem to work though. (This seems to have happened since i defragmented)

I have an ACER Aspire 57207 on Vista.

Any help would be much app'd!

1. Right-click in the standard youtube video window (non-full
screen).
2. Choose 'Settings...' from the Flash Player's pop-up menu.
3. Uncheck the 'Enable Hardware Acceleration'
4. Click 'Close'.


I Found these instructions on another Boasrd and they worked for me after having the same glitch for a while.