prosilica calibration freezes during calibration step

edit

I don't have any experience calibrating the prosilica camera on the PR2. I followed this tutorial but the calibration process tends to freeze up on me.

Setup:

1. PR2 is plugged into the basestation. Ran this whole process from the basestation as well.
2. v1.0.0 of pr2_calibration on the robot.

What I did:

1. Ran: roslaunch pr2_calibration_launch calibrate_prosilica.launch
2. Moved around the checkerboard until the 'Calibrate' button showed up.
3. Clicked on 'Calibrate'
4. Nothing happens for at least a half hour.....'top' tells me that the cameracalibration process takes %86 of the CPU.
5. I eventually kill it.

What am I doing wrong? Am I not waiting long enough?