Are they both set to the same refresh rate? Perhaps that would make a difference. Put them both at the max that the weaker monitor can handle. Ray at home -----Original Message----- From: Mike Miller I setup a 19" and a 21" KDS monitor on my computer as a dual-desktop configuration. The problem is when the two monitors are sitting next to each other, the 21" screen 'pulsates' (you can see the brightness very faintly flickering). I ********************************************************** To Unsubscribe, set digest or vacation mode or view archives use the below link. http://thethin.net/win2000list.cfm