I've gotten the game running, created a character, and logged into the world. All of the 2d menu type things appear to be working, but the rest of the screen shows almost nothing (not black, but when I move the mouse or drag the menus around, they leave trails on the screen). One or two things appear to be rendered - when I move around, I see what looks like maybe a beard, and a ponytail.
Distribution: Ubuntu 8.04
Desktop environment: GNOME
Graphics chip: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 0c)
Driver in use: intel
Rendering method: AIGLX
I don't know much about graphics, so please let me know what other debugging info I can provide.