The problem is almost certainly that your framerate is below the 10-15 FPS required for radar operation. If you are experiencing this problem with higher framerates (say, anything above 30 FPS), then it is truly a novel issue. However, I suspect that the entire game is having some trouble, and that...

Sorry to bump this after almost 4 years, but I'm having a related problem. In Containment there's a radar I can NOT operate. Once I click on it to get control, things go a crazy. I lose all directional control of the mouse, basically. The view will start bouncing up and down (not quite from straight...