Version control tab not showing incoming changes

I am using the built in Perforce connection, and am unable to see the contents of incoming changes. All of the computers we are using show them, except mine. Mine only displays the number of incoming submits, but provides no details on what they contain. What are the steps to take to debug this? I have looked through the perforce settings in P4V and Unity, and they appear to be identical. I have also reinstalled, to no effect. We are using Unity 4.5.0.

It is not a program wide problem, it is project specific. A test project does not exhibit the same behavior.

I found a solution to the problem. Undocking, closing and reopening the version control window solved the problem.