Comment 3 for bug 352909

Hm, it appears to be a problem with your system rather than with startupmanager. Do you have problems with any other program on your system? I think the menu editor and update manager uses pygtk.
I dont know what you could do to fix your problem though, perhaps you could ask at ubuntuforums.
If you find a solution to the error it would be nice if you post here so i know if i can close this bug.