Well, thank you, Sir, if quiet!
This is all I could find on Youtube problems at the mo.
<Next, check to see if your system meets these requirements for running the video player:
- Macromedia Flash Player 7.0+ plug-in
- Windows 2000 or higher with latest updates installed
- Mac OS X 10.3 or higher
- Firefox 1.1+, Internet Explorer 5.0+, or Safari 1.0+
- Broadband connection with 500+ Kbps>
Edit: Update - now have Firefox working on youtube and try this link to check for your IE?