Ok, I've run the installer and it seemed to work fine. I can run ./pssetup and ./psupdate just fine.  I run into problems when I run ./psclient Well here's the output.

Your configuration files are in... /home/trent/.PlaneShift
DEBUG: Initializing OpenAL sound system
DEBUG: Retrieving available devices.
DEBUG: Default OpenAL device: '((sampling-rate 44100) (device '(native))
DEBUG: No device specified
DEBUG: Falling back on default device
DEBUG: Can't retrieve attributes size: OpenAL error ALC_INVALID_DEVICE
X Error of failed request:  BadValue (integer parameter out of range for operation)
  Major opcode of failed request:  130 (XFree86-VidModeExtension)
  Minor opcode of failed request:  10 (XF86VidModeSwitchToMode)
  Value in failed request:  0x3c00002
  Serial number of failed request:  401
  Current serial number in output stream:  405
Please help me.

Ubuntu Jaunty 9.04 64 bit.
Dell Inspiron E1505
Intel® Core 2 Duo processor T7200 (4MB Cache/2.00GHz/667MHz FSB)
2GB Shared Dual Channel DDR2 SDRAM at 533MHz, 2 DIMM
256MB NVIDIA® GeForce® Go 7300 TurboCache

*EDIT*
Ok, I've figured out that by changing the options to windowed mode lets me play the game. However, I don't want to play in windowed. I would prefer full screen. Also, the options that I change in ./pssetup don't seem to affect the game. I had to manually edit the config file. So, how do I commence to play this in fullscreen?