Gmail is totally messed up for me, too, in Safari. I have had to go onto Chrome now until Apple sorts this out.
Yes. Same here. Buttons won't work on Youtube. Extensions seem to be experiencing odd behavior. Also Gmail is all messed up. Heck, I couldn't even log in here on Safari 5.1.4. I had to use Opera to sign in and post.![]()
I decided the problem. Once I opened Safari on a 64-bit mode, all the problems disappeared.