How do I uninstall the update version 9.04 to go back to 8.04?
I'm thinking my display video can be adjusted with 8.04 while it can't with
9.04?

Ubuntu 9.04 uses a newer kernel which renders older graphics drivers
obsolete. It isn't 9.04 that is the problem but the kernel 2.6.28. You can
install an older kernel and remove 2.6.28 and use the old graphics drivers.
This would be easier than re-installing Ubuntu.

Look in the repositories in Synaptic for kernel 2.6.27 and install that. Do
not remove 2.6.28 until you boot into 2.6.27 successfully. Make sure that
the kernel matches your current one in all things but the number. It will
most likely be called 2.6.28.12-generic. You want the most recent one that
has 2.6.27.x-generic.

Your timing is perfect. I am thinking of buying a Dell mini 9 inspiron
for my wife, surfing as well as some email and a little light duty
gaming like solitare and such. It will have ubuntu and no disk hard
drive. How do you like yours.

I just bought my wife an Asus Eee pc 900, refurbished from Buy.com and
she loves it. She is also a light user, email, internet browsing and
games. I replaced the Xandros operating system with Ubuntu 9.04 because
Xandros took up the whole sd drive and I couldn't remove any of the
pre-installed programs to make room for software updates. Ununtu 9.04
runs great on it, no audio or video problems.

Had the same problem on my desk top install. If you are able to got to update
amanger and download and install the updates (there are ATI & INTEL video
updates) that are available, this should fix the problem. My problem was fixed
with the first update & reboot I did.