Game crashes randomly

[Ryder!]

Hi, my game crashes when im playing MTA race, it crash after 2-5 minutes..

The game freeze, and sometimes i have to reboot

Amd sempron 2600+

1gb ram

Ati Radeon 9600 pro 256mb

PD: I have san andreas version 1.0

Thanks

[Jani]

Welcome to the world of unstable software.