Hi, kitw, welcome to the Seven Forums!
I experienced this issue with the x64 version of Outlook. It was due to an incompatible add-in.
What add-ins are you using?
Go to the "File" ribbon then select "Options":
After that, select "Add-Ins":
In the ensuing dialog, at the bottom of the page, click the "Ma
nage: [COM Add-ins] G
What do you see? Mine is pictured below. I had to disable the AVG add-in to alleviate the issue you are experiencing but you might have an add-in causing the problem that is different than what caused my issue: