Ocassional reboots.

Over the last 3-4 weeks i have been having the occasional reboot from my PC, sometimes with a BSOD other times just freezes and screen goes pixalated.

After PC restarts i get the Windows Solution Window appear ive attached the screenshots below.

Also today this came up which ive copy/pasted

Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7601.2.1.0.256.1
Locale ID: 2057

Additional information about the problem:
BCCode: 1
BCP1: 00000000776722CA
BCP2: 0000000000000000
BCP3: 00000000FFFF0000
BCP4: FFFFF880077BBC60
OS Version: 6_1_7601
Service Pack: 1_0
Product: 256_1

Files that help describe the problem:
C:\Windows\Minidump\121113-19671-01.dmp
C:\Users\James\AppData\Local\Temp\WER-58422-0.sysdata.xml

Any help will be great thank you.

Thanks ive not posted it yet because ive not had the time but also because i have none happen since i changed my mouse, could this of been a cause or simply coincedence?

Also i think i have a PSU fan problem which may or may not be related which ive posted here:-
PSU suddenly got very loud possible fan?