Michael Asten wrote: > Fortunately help is at hand; RSI advise that idl5.3 has a > commandline command to reset everything without exiting idl. You mean *everything*? Including call_external and dlm links? And I've spent all this time optimizing the restart delay down to about 1 second.... (OK, so the bulk of the code must be in cache somewhere...) Regards, Stein Vidar