mushroomtip macrumors 6502 Oct 27, 2012 354 0 Jan 24, 2013 #26 you wanna make sure the surface is level more so then flat .
xgman macrumors 603 Aug 6, 2007 5,727 1,449 Jan 25, 2013 #27 It is more noticeable when you use two monitors and you place them up against each other.