User blog comment:Dentface/Release Notes - January 10th - Bug Fixes/@comment-98.220.217.190-20120114133147/@comment-1140008-20120114145906

I don't think that's their issue. Sometimes that happens if you were messing with the content of the POTCO Launcher. Or you have a rare bug. Either way, I'd install another version of the launcher. (Links to the PC and Mac Downloads can be found here.