What strange page? You Tube looks normal to me. The chances of You Tube being hacked is low, but the chances of your browser being hijacked is correspondingly higher.
If youtube got hacked, that would be major news. I'm pretty sure google techs have all possible holes patched safely, though
Muncle just show us what a real browser is in real life, cause i can only think of FF right now buddy
http://forums.digitalpoint.com/showpost.php?p=8869537&postcount=9 Just such a surprise to see a screenshot -_-
Youtube is working fine with me. May be your connection is slow today and is not loading content of the page.
Had the same thing happen to me on different sites - generally just need to refresh the page and things go back to normal.