Problems with killing ddd

A problem that plagued me recently returned.  But this time not as 
deadly.  After killing ddd (some kind of loop, probably in my code, but 
clicking on the interrupt button got no attention), I was back with the 
problem of ddd sleeping almost immediately.  This time I was smarter, 
and compared the ~/.ddd/init file with a back up.  The current had 13088 
bytes, the backup had 4518.  Copied the backup init file to the current, 
and all is working.  The lesson here for me is that one should save a 
working ~/.ddd/init file to restore in case killing ddd puts it in some 
kind of evil state.
Fred