The bug is that SD! is in a "no user interaction" condition (because of the schedule). So, it's set up to not prompt. But, rather than quitting, you changed something (the drive), which modified the settings. When you tried to quit, it wanted to put up a panel that said "hey, the settings have changed, do you want to save them?" But it can't, because it's set up to not interact...
__________________
--Dave Nanian
|