Periodically, when I am running or editing a program, I get an error message on the screen and PC-DMIS shuts off. This is getting extremely bothersome, to say the least. The error box is "pcdlrn" and the error message is "A required source was unavailable". Anyone have this happen to them? Any ideas on what the required source could be? I am running on a independant cumputer tied into the server via wireless network.

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