mcavic - 3:12 am on Feb 20, 2008 (gmt 0)

I'm not very familiar with Ubuntu, but usually when Linux hangs during boot, if it's not a hardware issue, it's because it's having trouble getting to the Internet.

If you are able to get online once it boots, check that you have at least two valid DNS servers listed in /etc/resolve.conf, and that the machine's IP address is listed in /etc/hosts.