YouTube stopped working, black rectangle - movie not loading when right clicked
Can see only black rectangle, when right clicked to try tick/untick hardware acceleration - displays only movie not loaded.
YouTube works on iPad connected to schools network. No problems with other websites with video content.
update to new flash
uninstall Policy Central
web cache server restarted
Browsers: ie8, ie9, Firefox, Chrome, Maxhton
System: 7 and XP
Any ideas what else I can try?