I've just installed and upgraded an HP OmniBook XE2 laptop to FreeBSD-5.4 PreRelease here
and find that I can't get the default install of xorg to run at 800x600.
I used to have FreeBSD-4Stable up until a week ago, which I decided to reinstall to version 5
after hitting problems updating to the latest Gnome.
I've tried using the same settings for depth / resolution that "just worked" using XFree86, but the screen just starts to look as if its going to "melt" with the strange look the tft screen takes on after running startx.
Here's the screen section ...