cdsousa, I am also using different PtGrey cameras.
When I was using a high-resolution version (FL3-U3-32S2M-CS) you are right that the software crashes at full frame size. This is due to the limited buffer size of 64MB and is described in PointGrey AppNote 355:
I had to reduce the number of frames in the buffer and since then it is working without problems.
FC2Config fc2Config;
pCam->GetConfiguration(&fc2Config);
fc2Config.grabMode = DROP_FRAMES;
fc2Config.numImageNotifications = 1;
fc2Config.numBuffers = 5; // Reduce due to 64MB limit, see Knowledge Base Art 355
pCam->SetConfiguration(&fc2Config);