Failure to complete boot

[sideaway]

Hey there, whenever I try and boot the computer begins to load correctly, but after the scrolling ubuntu splash, I just get a black screen. Can anyone help?

64bit Ubuntu 9.10

Cheers,
Sideaway

[n0dix]

Which is the version of your kernel? what driver do you use? Give some specifications of hardware. Post your menu.lst, please.

[sideaway]

Harware is in sig.

e8400, gigabyte p35-DS3R, HD4870 with fglrx drivers will brb with kernel version (although I've got four backed up, and have used each one with same results) and will post menu.lst Is it different for Grub 2?

[sideaway]

Ok, kernel version is 2.6.31-17

[sideaway]

Aaaaand apparently Grub2 doesn't have a menu.lst?

[sideaway]

shamless bump!

[sideaway]

Ok, for some reason, it was the xorg.conf, but dpkg-reconfigure xserver-xorg wouldn't run, so in the interest of those in the same situation;
I booted a recovery kernel and dropped to a root console with networking, and installed VIM with apt-get install vim. No need for sudo as in a root shell.

I then edited the xorg.conf file with vim /etc/x11/xorg.conf

I changed the resolution from my native, to 800x600, so the value read "800x600_60.00" I then used the command ':w' to write to file. then ':qa' to quit vim. Then rebooted with reboot -n, and voila, It booted back to my desktop with the correct resolution and everything.