So if you allow people to screw with the OS, they will break it, and I did.
I installed Ubuntu 10.04 32 bit on an intel dual core 2.9 Ghz with 8GB ram and 2TB disk. It was running great, and I set about customizing the desktop and installing apps. 4 days later, I was very happy with the entire setup.
I noticed that there was a proprietary driver available for my graphics board. So I had the suggested driver downloaded and installed.
A reboot later, and my monitor says it doesn't support the input frequencies, and there is no desktop display after I log in. The login runs, the desktop does not.
So, just because my video board supports something like 3k x 2k resolution, why does that have to be the default display resolution?