Blue screen then automatic restart

[surfergurl]

Hello
So I double click on Sims 3, then all of a sudden I get this blue "command prompt"-like screen for a split second, and automatically restarts my laptop. Then once my laptop has loaded back up again, I double click on Sims 3 again...and it works fine.
Could anyone possibly tell me what's up with it and how to solve it? Cos I can imagine its not doing my laptop a lot of good.

Thanks