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Author Message   Waynemel Tinkerer Username: Waynemel Post Number: 44 Registered: 08-2009 Rating: N/A Votes: 0 Posted on Friday, March 25, 2011 - 08:49 am:    Just to add, you may want to check the other mirrors to make sure they are not badly misaligned or loose. Also, work slowly. Very small adjustments to these screws make large changes in the double image.