graphics proprietary driver will not activate correctly

[Seoolas]

I have a pair Gigabyte radeon HD4850 that are cross fired.
Upon first boot of the ubuntu 9.04 the system prompts me to activate the proprietary drivers for my graphics.
When I press the "Activate" button I get a progress bar that remains empty until a message comes up that it didn't work and that I should report the problem...(sorry I could not memorize the exact phrase).

After rebooting the computer does not start the GUI and instead all I get are white characters on black screen asking for my user name and password... Being a complete rookie as I am, I had to reinstall ubuntu 9.04 to get my GUI back...

I Just thought I should let you know about it, please en light me anyway possible,

Thank you

ProblemType: Bug
Architecture: amd64
DistroRelease: Ubuntu 9.04
ExecutablePath: /usr/bin/yelp
Package: yelp 2.25.1-0ubuntu5
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: yelp
Uname: Linux 2.6.28-11-generic x86_64

[Robert Roth (evfool)]

Thank you for reporting this bug to Ubuntu. Jaunty reached EOL on October 23, 2010.
Please see this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

I've tried recreating this bug with Precise and was unable to, given the information you've provided. Please either a) upgrade and test or b) increase the verbosity of the steps to recreate it so we can try again.

Please feel free to report any other bugs you may find.

[Launchpad Janitor (janitor)]

[Expired for jockey (Ubuntu) because there has been no activity for 60 days.]