<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; = charset=iso-8859-1"> <META content="MSHTML 5.50.4134.100" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Georgia size=2>Change in humidity happens gradually = in comparison to temperature. The plate will expand and contract = differently than the body too. Especially if in the sun even for very short periods. = I would check to see if some of the plate or pin block screws haven't gotten = loose from being 'jerked' around.</FONT></DIV> <DIV><FONT face=Georgia size=2>Keith = Roberts</FONT></DIV></BODY></HTML>