Sample Vision Code Misbehaving

[SoyStuff]

When we wrote our vision code for this year, we were feeling pretty confident. Then, when we used it for the first time, it caused us to lose communication with the robot. We spent a day trying to get it working, and eventually we just tried pushing the 2013 Vision sample code (yes, with the lines to initialize the Axis camera and get an image uncommented). This caused us to lose communication, as well. For the record, we're using C++. Any thoughts as to what might be wrong?