Thanks! That worked. For some reason, when I set the 21" 1600x1200 display to 85 Hz, it gets even weirder interference when there is motion on either screen. I set them both to 75 Hz and everything is working fine. (These are both plugged into a ATI Radeon VE 7000 32mb, btw) Mike -----Original Message----- From: windows2000-bounce@xxxxxxxxxxxxx [mailto:windows2000-bounce@xxxxxxxxxxxxx] On Behalf Of Ray at home Sent: Saturday, September 06, 2003 12:49 AM To: windows2000@xxxxxxxxxxxxx Subject: [windows2000] Re: OT - Monitor Interference 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 ********************************************************** To Unsubscribe, set digest or vacation mode or view archives use the below link. http://thethin.net/win2000list.cfm