first make sure your config file is set up correctly. your device sections should look like this: Section "Device" Identifier "Videocard0" Driver "radeon" VendorName "Videocard vendor" BoardName "ATI Radeon 7000" BusID "PCI:1:0:0" Screen 0 EndSection Section "Device" Identifier "Videocard1" Driver "radeon" VendorName "Videocard vendor" BoardName "ATI Radeon 7000" BusID "PCI:1:0:0" Screen 1 EndSection Make sure you change the BusID to whatever your card is, and make sure both devices have the same BusID. some newer radeon cards have two ids. ignore the secondary one (usually the id that ends in 1). also remove any videoram lines from your config. this is an example screenlayout: Section "ServerLayout" Identifier "DualHead" Screen 0 "Screen0" Screen 1 "Screen1" LeftOf "Screen0" InputDevice "Mouse0" "CorePointer" InputDevice "Keyboard0" "CoreKeyboard" Option "Xinerama" "On" EndSection You only need the xinerama option if you want to drag windwos between heads (single logical screen). Alex ------------- Hi I am trying to hook up a Hercules 3D Prophet 9000 PCI graphics card in dual screen mode, but I cannot get the settings correct in my config file. Can you help me out? I am running Red Hat 7.3 and XFree86 4.2.0 on a PC. Many thanks, Hong __________________________________ Do you Yahoo!? The New Yahoo! Shopping - with improved product search http://shopping.yahoo.com _______________________________________________ XFree86 mailing list XFree86@xxxxxxxxxxx http://XFree86.Org/mailman/listinfo/xfree86