YouTube Help

If you see a QuickTime logo over your video player and are unable to play videos, make sure QuickTime isn't your default Flash player. To correct your QuickTime preferences:

1. Open QuickTime Player.
2. Click "Edit" in the menu bar.
3. Click "Preferences," then click "QuickTime Preferences."
4. Click the "Browser" tab.
5. Click "MIME Settings."
6. In the "MIME Types" box, make sure the "Miscellaneous" option is unchecked.
7. Click "OK," "Apply," and "OK."
8. Restart your computer.