WordPress MU

When a new user signs up, they receive the activation email perfectly, however when the activation link within the email is clicked, it brings up a completely broken/blank page on my site (see image below)

I'm not sure what could be causing this issue? I only have one plugin...Dynamic Content Gallery, and it hasn't caused this issue before, so it's not a plugin problem...Any ideas? Feel free to try and create an account yourself...it doesn't work at all.

http://www.screencast.com/users/Bear_Down/folders/Jing/media/84b28cc8-c999-4348-8c4e-43fd7496fcda

Created account, still waiting for email, but wanted to ask you...are you using BuddyPress? If so, let me know because there are activation issues I can point you to...

Thanks awarner20...yes I'm using buddypress...the buddypress widgets are being used in the "community" subdomain

I experienced the same, this thread has been continued here http://buddypress.org/forums/topic.php?id=1659&replies=6#post-8536