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)