crashing and error

Okay this thing pop up thats says out of memory array.cpp(88) or out of memory exefill.cpp(110) and when it does pop up it makes me log out when i'm like far in a mission or something

system
dell computer
windows xp (sp2)
hdrive 37.2gb
and i cant tell whats my other stuff b/c idk \

So some plz healp me!!!!!!!!!!!!
need an image i can get it for u if u wnat to see the error thing pop up