>> Did you add your monitor to the "Screen" section? Can you put your >> xorg.conf file on http://pastebin.com/ and give here a link? I could not get pastebin to give me back a URL so I added my /etc/X11/xorg.conf below Basically I'm trying to do the same things with ModeLines that I have been doing for the last 20 years :-) I just took the xorg.conf that was generated during the FC6 intall, added a few Modelines and Modes lines, and reboot. The xorg.0.log file does not acknowledge seeing the ModeLine line but does give errors for the unknown entries in the Modes line. Then it defaults to some oddball mode. The FC6 release notes say: "The X.org 7.1 X server has been modified to automatically detect and configure most hardware, eliminating the need for users or administrators to modify the /etc/X11/xorg.conf configuration file. " but it does not say that customizing xorg.conf is no longer supported??? Did I make some simple error in editing xorg.conf or maybe this is a bug in Xorg 7.1.1. I hope someone did not decide to take this basic level of configuration away from us users :-) Thanks for your help. I am considering writing a non-interactive version of xvidtune to force my modes. Is there already some app like that in the vast X11 software base? =S.Coffin xigc1@yahoo.com ##################################################################### # Xorg configuration created by pyxf86config Section "ServerLayout" Identifier "Default Layout" Screen 0 "Screen0" 0 0 InputDevice "Keyboard0" "CoreKeyboard" EndSection Section "InputDevice" Identifier "Keyboard0" Driver "kbd" Option "XkbModel" "pc105" Option "XkbLayout" "us" EndSection Section "Monitor" ### Comment all HorizSync and VertSync values to use DDC: Identifier "Monitor0" VendorName "KDS" ModelName "Avitron" DisplaySize 350 260 ### Comment all HorizSync and VertSync values to use DDC: HorizSync 30.0 - 110.0 VertRefresh 50.0 - 160.0 Option "dpms" #SC This SC line is for the Radeon 9800 Pro Modeline "SC1920x1440" 233.50 1920 2032 2232 2596 1440 1447 1451 1489 -hsync +vsync ModeLine "SC1400x1050" 184.0 1400 1480 1672 1948 1050 1051 1054 1100 +hsync +vsync ModeLine "SC1600x1200" 204.75 1600 1690 1858 2158 1200 1203 1207 1251 -hsync +vsync EndSection Section "Device" Identifier "Videocard0" Driver "radeon" EndSection Section "Screen" Identifier "Screen0" Device "Videocard0" DefaultDepth 24 #Option "NoDDC" SubSection "Display" Viewport 0 0 Depth 24 #Modes "SC1920x1440" "SC1400x1050" "1400x1050" "1280x1024" "1280x960" "1152x864" "1024x768" "800x600" "640x480" Modes "SC1600x1200" "SC1400x1050" "SC1920x1440" #Modes "SC1400x1050" "1400x1050" "1280x1024" "1280x960" "1152x864" "1024x768" "800x600" "640x480" EndSubSection EndSection ##################################################################### <hr size=1>Access over 1 million songs - Yahoo! Music Unlimited <a href="http://pa.yahoo.com/*http://us.rd.yahoo.com/evt=36035/*http://music.yahoo.com/unlimited/">Try it today.</a>