Ubuntu 9.04 upgrade fails on boot

[MacGyverFan]

Hi all,

I have just finished updating my older box from 8.10 to 9.04 and installing a bunch of programs. I had shut it down several times between sessions but when I unplugged it and moved it, it fails. It goes fine through the BIOS and GRUB (I think) but then when there is a screen of text it flashes to black several times and then displays a screen that looks like static with "Ubuntu" barely visible in several places.

Thanks in advance for the help!

[cariboo]

It sounds like th monitor isn't being detected properly, are you using the same monitor?

[blackSP]

Looks like the ati card problems I have. I re-installed from scratch 3 times now. This is the most unstable Ubuntu Ive use to date (since 7.10)