My outlook 2010 running on windows 7 has been hanging many times a day.
Here is what the event viewer says.
Event 1002, Application Hang
The program OUTLOOK.EXE version 14.0.6131.5000 stopped interacting with Windows and was closed. To see if more information about the problem is available, check the problem history in the Action Center control panel.
Process ID: 23b8
Start Time: 01ce4043cf0644d3
Termination Time: 26
Application Path: C:\Program Files (x86)\Microsoft Office\Office14\OUTLOOK.EXE
Report Id: 03c68836-ac3b-11e2-bf0d-d4bed91efcc4