3dmark score 1500 w/ radeon x800pro

am new to using 3dmark but i ran it a couple times off of a fresh boot and my score seems HoRRIBLE (around the 1500s).. i expected alot more from my setup.. am i missing something??

my system:
- p4 3.0 ghz w/ 2GB ram
- windows vista ultimate (ive run the program on xp too & same score)
- ati radeon x800Pro
- monitor 1440 x 900 (ive run the 3dmark on all diff resolutions..)
- cpu temp avg 40C

and i dont overclock