UBB.threads PHP Forum Software Community Forums UBB.threads 7 Version 7 Support IE not logging in successfully

I had Chrome completely go insane on me and despite rebooting, uninstalling, reinstalling, deleting things, etc. it just keeps timing out. So I have had to switch over to IE.

For some bizarre reason, while I can use all other websites in IE, I can't use any UBB forums. I can't use my own nor can I use this one. When I try to log in it doesn't give any errors. However I am not logged in when I return to the main screen. It's the same on all UBB forums I've tried.

What could be causing this? If it's causing this for me it's probably doing it to others, too, so I should write a FAQ to help IE users and post it prominently on my forums.

Thanks!

(I had to use another machine to post this)