Gl Statistics

Hello. The BGE crashes on me when the game gets too complex. I don’t know if it’s physics, logic, polys, or textures causing this, but I suspect it is texture graphics. Could somebody please explain these stats for me, and possibly how I might avoid future problems? Thank you very much.
http://img11.imageshack.us/img11/5979/statsrwi.jpg

What is your hardware spec? which version of blender? which mode(GLSL materials, multitextures…)? What do you mean by complex? big?

Plug and Play Monitor on Intel 82915G/GV/910GL Express Chipset Family

Color Quality 32 bit (highest)

Screen Resolution 1152 by 864

Windows XP

2 gigs of RAM

GLSL is not supported by the graphics card or driver, but I believe the card is custom-built and not replaceable

I just use the default texture setting

Blender v.2.49

Complex as in more complex than a cube game:

it crashes with more logic, polys, and especially textures.

Will a different texture setting than MultiTexture Materials be less realtime CPU intensive?

Thanks.