WordPress version: 3.5.1
Latest gamepress pro template, white.
Tribes calendar version: 2.0.11
I installed a fresh wordpress, followed shortly by a gamepress pro theme installation, and then the calendar.
Using the default theme: everything works fine.
This is the link to the calendar: http://thegoshow.tv/wp/?post_type=tribe_events
It leads to a 404 with the gamepress pro theme, but works fine with a default theme.