[Staffslug] unrecognised video mode 31b

i've just done a fresh install of my system (i had to repartition the hd) and got a problem that i've fixed before but cant work out how i did it. even looked at the thread i made on the forum before and can't see what i did to fix it. getting the "unrecognised video mode 31b" when the system starts, all it means is that i have to manually select the mode on startup which isnt ideal. i think i added/changed a line in my xorg.conf to solve the problem last time, but i cant see what it was, i've also checked my menu.lst to see if the video mode was specified there and it is. my xorg.conf file ***** # xorg.conf (X.Org X Window System server configuration file) # # This file was generated by dexconf, the Debian X Configuration tool, using # values from the debconf database. # # Edit this file with caution, and see the xorg.conf manual page. # (Type "man xorg.conf" at the shell prompt.) # # This file is automatically updated on xserver-xorg package upgrades *only* # if it has not been modified since the last upgrade of the xserver-xorg # package. # # If you have edited this file but would like it to be automatically updated # again, run the following command: # sudo dpkg-reconfigure -phigh xserver-xorg Section "Screen" Identifier "Default Screen" Monitor "Configured Monitor" Device "Configured Video Device" Option "AddARGBGLXVisuals" "True" Defaultdepth 24 EndSection Section "Device" Identifier "Configured Video Device" Driver "nvidia" EndSection Section "InputDevice" Identifier "Generic Keyboard" Driver "kbd" Option "XkbRules" "xorg" Option "XkbModel" "pc105" Option "XkbLayout" "gb" EndSection Section "InputDevice" Identifier "Configured Mouse" Driver "mouse" Option "CorePointer" EndSection Section "InputDevice" Identifier "Synaptics Touchpad" Driver "synaptics" Option "SendCoreEvents" "true" Option "Device" "/dev/psaux" Option "Protocol" "auto-dev" Option "HorizEdgeScroll" "0" EndSection Section "ServerLayout" Identifier "Default Layout" screen "Default Screen" Inputdevice "Synaptics Touchpad" EndSection Section "Monitor" Identifier "Configured Monitor" EndSection Section "Extensions" Option "Composite" "Enable" EndSection *********** and my menu.lst file ******** hiddenmenu # menu.lst - See: grub(8), info grub, update-grub(8) # grub-install(8), grub-floppy(8), # grub-md5-crypt, /usr/share/doc/grub # and /usr/share/doc/grub-legacy-doc/. ## default num # Set the default entry to the entry number NUM. Numbering starts from 0, and # the entry number 0 is the default if the command is not used. # # You can specify 'saved' instead of a number. In this case, the default entry # is the entry saved with the command 'savedefault'. # WARNING: If you are using dmraid do not change this entry to 'saved' or your # array will desync and will not let you boot your system. default 0 gfxmenu=/etc/grub/message.elyssa ## timeout sec # Set a timeout, in SEC seconds, before automatically booting the default entry # (normally the first entry defined). timeout 0 # Pretty colours color cyan/blue white/blue ## password ['--md5'] passwd # If used in the first section of a menu file, disable all interactive editing # control (menu entry editor and command-line) and entries protected by the # command 'lock' # e.g. password topsecret ## password --md5 $1$gLhU0/$aW78kHK1QfV3P2b2znUoe/ # password topsecret # # examples # # title Windows 95/98/NT/2000 # root (hd0,0) # makeactive # chainloader +1 # # title Linux # root (hd0,1) # kernel /vmlinuz root=/dev/hda2 ro # # # Put static boot stanzas before and/or after AUTOMAGIC KERNEL LIST ### BEGIN AUTOMAGIC KERNELS LIST ## lines between the AUTOMAGIC KERNELS LIST markers will be modified ## by the debian update-grub script except for the default options below ## DO NOT UNCOMMENT THEM, Just edit them to your needs ## ## Start Default Options ## ## default kernel options ## default kernel options for automagic boot options ## If you want special options for specific kernels use kopt_x_y_z ## where x.y.z is kernel version. Minor versions can be omitted. ## e.g. kopt=root=/dev/hda1 ro ## kopt_2_6_8=root=/dev/hdc1 ro ## kopt_2_6_8_2_686=root=/dev/hdc2 ro # kopt=root=/dev/sda1 ro ## default grub root device ## e.g. groot=(hd0,0) # groot=(hd0,0) ## should update-grub create alternative automagic boot options ## e.g. alternative=true ## alternative=false # alternative=true ## should update-grub lock alternative automagic boot options ## e.g. lockalternative=true ## lockalternative=false # lockalternative=false ## additional options to use with the default boot option, but not with the ## alternatives ## e.g. defoptions=vga=795 resume=/dev/hda5 # defoptions=vga=795 quiet ## should update-grub lock old automagic boot options ## e.g. lockold=false ## lockold=true # lockold=false ## Xen hypervisor options to use with the default Xen boot option # xenhopt= ## Xen Linux kernel options to use with the default Xen boot option # xenkopt=console=tty0 ## altoption boot targets option ## multiple altoptions lines are allowed ## e.g. altoptions=(extra menu suffix) extra boot options ## altoptions=(recovery mode) single # altoptions=(recovery mode) single ## controls how many kernels should be put into the menu.lst ## only counts the first occurence of a kernel, not the ## alternative kernel options ## e.g. howmany=all ## howmany=7 # howmany=1 ## should update-grub create memtest86 boot option ## e.g. memtest86=true ## memtest86=false # memtest86=true ## should update-grub adjust the value of the default booted system ## can be true or false # updatedefaultentry=false ## should update-grub add savedefault to the default options ## can be true or false # savedefault=false ## ## End Default Options ## title Linux Mint x64, kernel 2.6.24-16-generic root (hd0,0) kernel /boot/vmlinuz-2.6.24-16-generic root=/dev/sda1 ro vga=795 quiet initrd /boot/initrd.img-2.6.24-16-generic title Linux Mint x64, kernel 2.6.24-16-generic (recovery mode) root (hd0,0) kernel /boot/vmlinuz-2.6.24-16-generic root=/dev/sda1 ro single initrd /boot/initrd.img-2.6.24-16-generic title Linux Mint x64, kernel memtest86+ root (hd0,0) kernel /boot/memtest86+.bin ### END DEBIAN AUTOMAGIC KERNELS LIST *********** so anyone got any answers? thanks sim