I've got IE6 and i can't go to some websites! It always freezes for a bit then the window disappears and a message box comes up saying Error Report!
I tried using a different thingie (i forgot what they're called! ) like MSN Explorer, etc. And it's still not working! Although SOME works but there's still a lot that doesnt!
Try going to those same sites using Mozilla's Firefox and see if it works.
Your IE6 may have been damaged by viruses or spyware in which case you'll either need to clear them out or reinstall windows if possible. Backup whatever you can, obviously, first if you decide to reinstall windows. It's definately NOT fun to do that if you've never done it before cuz you'll also need to download your drivers and stuff. Be prepared to ask for more help if you decide to reinstall windows.