Thanks Glen, while the other postings were definitely entertaining and appreciated, I have to give you the prize for the most useful reply.
I have two follow-up questions:
1) Since I'm not familiar with how to get in the door, can you advise me on the matter or tell me if there's a way for me to access the relevant pages of the manual on line, and
2) are you pretty sure that upon getting inside the door I will in fact find that switch?
Thanks a bunch