We know Google (& YouTube) is not a fan of Internet Explorer but now some Internet Explorer users are reporting that videos aren’t playing in IE. Some users are getting an error message that says “Operation Aborted” and are then being redirected to a page on Microsoft.com with more details.

Liz from YouTube support started a thread at YouTube Help confirming the issue and saying they are working on a fix. Liz did say there may be a way for the videos to play. She said:

So if you do get an error, try one of those tips above.

Forum discussion at YouTube Help.