I happens occasionally that starting a Python build causes Sublime to hang. Output from EventLog:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Application Hang" />
<EventID Qualifiers="0">1002</EventID>
<Level>2</Level>
<Task>101</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2013-02-27T09:51:15.000000000Z" />
<EventRecordID>33641</EventRecordID>
<Channel>Application</Channel>
<Computer>xxx</Computer>
<Security />
</System>
<EventData>
<Data>sublime_text3.exe</Data>
<Data>1.0.0.1</Data>
<Data>15c8</Data>
<Data>01ce14bf14855515</Data>
<Data>2</Data>
<Data>C:\Users\schlaich\Sublime Text 3\sublime_text3.exe</Data>
<Data>37ab5a7a-80c3-11e2-a6a1-e4115b3d1563</Data>
<Binary>55006E006B006E006F0077006E0000000000</Binary>
</EventData>
</Event>
Edit: Windows 7 (64bit), Sublime Build 3013 (32bit), Executed Python 2.7 (32bit)