This was the only "error" I could find in the logs.

Log Name: Application
Source: Microsoft-Windows-WMI
Date: 9/18/2013 5:16:55 PM
Event ID: 10
Task Category: None
Level: Error
Keywords: Classic
User: N/A
Computer: John-PC
Description:
Event filter with query "SELECT * FROM __InstanceModificationEvent WITHIN 60 WHERE TargetInstance ISA "Win32_Processor" AND TargetInstance.LoadPercentage > 99" could not be reactivated in namespace "//./root/CIMV2" because of error 0x80041003. Events cannot be delivered through this filter until the problem is corrected.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-WMI" Guid="{1edeee53-0afe-4609-b846-d8c0b2075b1f}" EventSourceName="WinMgmt" />
<EventID Qualifiers="49152">10</EventID>
<Version>0</Version>
<Level>2</Level>
<Task>0</Task>
<Opcode>0</Opcode>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2013-09-18T22:16:55.000000000Z" />
<EventRecordID>26708</EventRecordID>
<Correlation />
<Execution ProcessID="0" ThreadID="0" />
<Channel>Application</Channel>
<Computer>John-PC</Computer>
<Security />
</System>
<EventData>
<Data>//./root/CIMV2</Data>
<Data>SELECT * FROM __InstanceModificationEvent WITHIN 60 WHERE TargetInstance ISA "Win32_Processor" AND TargetInstance.LoadPercentage &gt; 99</Data>
<Data>0x80041003</Data>
</EventData>
</Event>



Then I also have this when it happens.
Source
Windows

Summary
Shut down unexpectedly

Date
‎9/‎14/‎2013 5:23 PM

Status
Report sent

Problem signature
Problem Event Name: BlueScreen
OS Version: 6.1.7601.2.1.0.256.1
Locale ID: 1033

Extra information about the problem
BCCode: 116
BCP1: FFFFFA8012C050B0
BCP2: FFFFF880063C4700
BCP3: FFFFFFFFC000009A
BCP4: 0000000000000004
OS Version: 6_1_7601
Service Pack: 1_0
Product: 256_1
Bucket ID: X64_0x116_TdrBCR:4:C000009A_Tdr:2_IMAGE_nvlddmkm.sys
Server information: 6ada66f3-ca0a-4880-a102-e592adb2e3e0

Cause: Problem with Nvidia driver.