*sigh* Have to study for Theo. This is actually a subject I just might fail...

Anyway, this was the suggestion of Mindgate's technical support:

Technical Support: What did it say?

Charles: Insufficient disk space.

Technical Support: Maybe Yahoogroups ran out of disk space.

Charles: Yahoogroups can't run out of disk space. They're sending the message. And I receive the same amount of email every week. It only happens on Saturday evenings.

Technical Support: What mail program do you use? Outlook?

Charles: Netscape.

Technical Support: Have you tried using another mail program, like Outlook perhaps?

Charles: It's not a program error. I've been using the same program for the past few years.

Technical Support: Ummm, I think we're working on the problem. There was a similar complaint and our system administrator is looking into it.

Charles: ...and?

Technical Support: Why don't you just email the system administrator about the problem?