"Hello. Tech Support; may I help you?"

"Yes, well, I'm having trouble with WordPerfect."

"What sort of trouble?"

"Well, I was just typing along, and all of a sudden the words
went away."

"Went away?"

"They disappeared."

"Hmm. So what does your screen look like now?"

"Nothing."

"Nothing?"

"It's blank; it won't accept anything when I type."

"Are you still in  WordPerfect, or did you get out?"

"How do I tell?"

[Uh-oh. Well, let's give it a try anyway.] "Can you see the C:\
prompt on the screen?