Hello, finally i got 3x 24" monitors for my Mac Pro. Monitor 1: DVI - DVI Monitor 2: Minidisplayport - VGA Adapter > VGA Monitor 2: Minidisplayport - VGA Adapter > VGA it works but strangely there's a 3cm black border on both screens with MDP-VGA Adapter but only on the left side each. on the AOC monitors i've already tweaked the screen settings manually but there's still those 3cm black border on both screens. does anyone got a trick to solve this problem? any settings in OSX or maybe a tool? Setup: Mac Pro / Ati Radeon HD 5770 / OSX 10.6.8 / AOC 2436 thanks for any help in advance.