Hi Everyone; I recently acquired an OPTACON II and I noticed a three position switch. What is the extra position for and, where is it located on the switch. Thank you in advance. Sincerely Anthony To unsubscribe at any time, just send a message to: optacon-l-request@xxxxxxxxxxxxx with the word "unsubscribe" (without the quotes) in the message subject. Tell your friends about the list. They can subscribe by sending a message to: optacon-l-request@xxxxxxxxxxxxx with the word "subscribe" (without the quotes) in the message subject.