New Computer Question

[stcloudgsx]

I just finished building myself a new computer and I'm having an overheating issue. When I got everything up and running and all updated, the temps for both cores were at 41*C. Then last night, I was playing the new flight simulator when I got a great blue screen. After this, my computer has been running at 57-60*C at idle. Does anyone have any idea what could be causing this? Thanks