A few strokes of the edge of the lap on the center of the mirror with the force there will bring that hump down. Start with only about 5 strokes to make sure that you don't overshoot or you will be in bigger trouble. Bob May http://nav.to/bobmay bobmay@nethere.com NEW! http://bobmay.astronomy.net _______________________________________________ ATM mailing list http://www.atmlist.net/