This was a most timely resurrection of this thread as I had been having this same problem with one of my switches and was dreading having to pull it out. I went home last night armed with my new found knowledge confident I had the fix at hand. Imagine my surprise when the switch operated perfectly before ever touching it with any tools. I didn't mess with it further since it was working fine but I'm thinking that this may be a case similar to what Greg described with the magnet sticking. In any event, if it acts up again I'll know how to proceed. Thanks to all for the great input on how to deal with this issue.
Frank
