WinXP Pro
Athlon XP 1800+ (1.53Ghz processor)
768 PC2100 DDR RAM
GeForce4Ti 4400 (128 Megs)
I play in 1024x768 resolution, 16bit color, OpenGL. I
rarely have any slow-up. So that means it isn\'t the game.

Maybe you should make sure all of your drivers are current, and get a RAM monitoring/freeing program. There are some memory issues with PlaneShift, but nothing a RAM freeing tool can\'t fix.