Windows vista/ ubuntu dual boot

I've been attempting to dual boot my system for a little and I can't figure out why I can't. I have 2 hard drives and the idea is to install the OSs on different drives. I understand the partitioning part which but I run into a problem when it actually tries to install ubuntu. It goes to about 4% and then tells me "I/O error reboot". that message comes up for every option like test this disk and stuff like that. I know the disk works and I have tried a few different disks. They work on other computers. Any ideas would be appreciated. Thanks

First, you might want to ask a moderator to move this post to Alternative Operating Systmes as you will probably get more help over there.

Also have you reburned another Ubuntu CD to rule out the disk being bad?

so far I have tried 4 different copies from 4 different places. Two in dvd format and the other two in cd format.

ubuntu locked up on me the 1st time it was installing. i tried a few more times and it ended up working.

you might try loading ubuntu first and letting grub handle selecting which OS to load

See if this article is of any help to you...

Dual-Booting Windows XP/Vista And Ubuntu 7.04
http://howtoforge.com/dual_boot_windows_xp_vista_ubuntu_feisty

At the end of the first page article, there's links to the next two pages of the article... which include the installation of Vista, and editing the Vista partitions (using the built-in partition editing utility).