Why can't YouTube video clips be played back in full-screen mode on the VAIO computer?
YouTube video clips cannot be played back in full-screen mode on the VAIO computer, though it is fine in normal size mode.
For VAIO computer that comes with ATI graphics:
A black and gray screen is displayed.
For VAIO computer that comes with Intel graphics:
A black full-screen is displayed.
To resolve this symptom, please update to the latest Adobe Flash Player.
Adobe Flash Player Installation: