Hi Jeff, It's not psychological, is physiological. Simple dark adatation is the explanation. As I said before, and will again, the more you look, the more you see. :-) Steve and Rosie Dodder sdodder@xxxxxxxxxxx Visit my web site at http://www.stargazing.net/Astroman _________________________________________________________________ Get a FREE online computer virus scan from McAfee when you click here. http://clinic.mcafee.com/clinic/ibuy/campaign.asp?cid=3963 -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.