For us IE users, whenever you goto a site with a digg it button, it AUTOMATICALLY logs me out of digg when I come back on! it's EXTREMELY frustrating. When I see a "digg it" button on someone's site, I KNOW that I can't click it because my account will already have been logged out, even if I have JUST logged in.

 
(Yes, I know this is ironic but if you are using IE,
go back to digg and see if you are logged in)