Are you still having a problem? Sometimes the Twitter widget in the sidebar at http://venturehacks.com gets a little wacky. I believe it is an intermittent problem with Twitter.
I thought it was very rare but perhaps it is more common than I thought? Is anyone else having this problem? I couldn't recreate it. Thanks!
Looks like it is this script: http://twitter.com/statuses/user_timeline/venturehacks.json?...
Seems a little rude. I don't like a generic dialog box popping up asking for my credentials to an unrelated site...