Hi, Here is what I did to change the refresh rate of my monitor from 85Hz to 100Hz. My monitor was correctly recognised and the HorizSync and VertRefresh values were already nicely reported in XF86Config-4. Check that yours are too. if not look them up in the users manual and edit the values yourself. 1. I commented out from /etc/X11/XF86Config all Modelines with a different refresh rate other than the one I desired (which of course complies with the specs) at my resolution (1024x768). 2. I then went back to /etc/X11/XF86Config-4 and added this Section. Section "Modes" Identifier "Modes0" Modeline "1024x768" 115.5 1024 1056 1248 1440 768 771 781 802 -HSync -VSync EndSection Which of course was then the only one I left reported in XF86Config for 1024x768. 3. At last I added a single line on the Monitor Section in /etc/X11/XF86Config-4 Section "Monitor" Identifier "T550" UseModes "Modes0" #Added this line here VendorName "EIZO" ModelName "FlexScan" HorizSync 30 - 82 VertRefresh 50 - 160 Option "dpms" EndSection 4. restart xserver and good luck Cheers, Makis Asimidis __________________________________ Do you Yahoo!? New Yahoo! Photos - easier uploading and sharing. http://photos.yahoo.com/ _______________________________________________ XFree86 mailing list XFree86@xxxxxxxxxxx http://XFree86.Org/mailman/listinfo/xfree86