Well I didn't get far. When I finished posting the last BUG report, I had forgotten the test batch was still running (not 'Stop"ped) and I tried to close the edit window and go back the the batch I was supposed to be debugging. Now the IDE is (Not Responding) and the test batch file is locked so I can't delete it. Looks like I will have abort the IDE using Task Managers "End Task" function. Pity the IDE didn't say something like :- "This file is currently running - Are you sure you want STOP it and close the file ?"