Random blue screens

Hi,

I've just got a computer with Windows 7, and I've been getting blue screens about once per day. It's happened while doing many different things (play a game, surfing the web, the computer playing music with me not doing anything).

After it resets, I get a message saying:

"Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7600.2.0.0.768.3
Locale ID: 3081

...

Files that help describe the problem:

C:\Windows\Minidump\021011-25474-01.dmp
C:\Users\Redwards\AppData\Local\Temp\WER-936708-0.sysdata.xml"

I've attached those files.

Is there any way to tell from those files what the problem is?

Thanks :)