Strange Frame

[Nametaken]

I recently decided to start WoW again to play a Bloodelf Paladin, so I downloaded some UI mods, but when I joined a raid group a frame appeared and I have no idea to which addon it belongs..I can't move it with any Shift/Alt/Ctrl + mouse button combination and the tooltip isn't very helpful either.

Here's a screenshot: http://img412.imageshack.us/img412/4117/frameol1.jpg

Can anyone tell me which addon this frame is from?

(sorry for bad grammar)

Thanks in advance