i just jailbroke my ipod running 4.1 using limerain. i added a few sources to cydia then i went to add a fifth source and it got stuck. on the top it says updating source and on the bottom it says downloading packages and its about 90 percent done. it wont do anything. i tried to exit out of cydia and open it back up but its still on the same page. is there anyway i can exit out of adding the source?