"Texture has a bad pixel format"...from venezuela....HELP!

[jedisalf 0]

my system spec.

PIII 450Mhz

3d Blaster Savage4 32 Mb

384 MRAM

10 Gig

Intel 440zx motherboard 4 channel PCI sound

C-Media 8338 Sound

In Operation Flashpoint when I play the Campaing Mode, just after I've finished my training the computer sends me to desktop and freezes, forcing me to reboot it!.....this only happens in this campaing mode, the singles missions I can play it without problem....the last time, before freezes windows send this error message "Texture has a bad pixel format (VRAM)"...whats this mean?.....

How can I fix it?

THanx