...it just stopped

I was tinkering with my desknote compter last night, seeing what all it could run. So I ran GTA3 off of one of my computers(over the network. Suprizingly, it ran quite well. So, I close it then try to reopen a few minutes later, and I get an error. It keeps doing the same thing every time I try to run it! I changed nothing on either computers...what's happening?!

ECS Desknote
AMD Athlon XP 2000+
256M DDR 2100
20G HD
SiS 740

[Prometheus]

maybe you overloaded a graphics card?