Problem starting Photon

Hello everybody.

I have a strange problem when I boot the machine (x86, QNX 6.2.1). After login in, the screen becomes black and I only see the mouse pointer, but I cannot do anything else. I have tried it booting without Photon and then starting it (“ph”) but the same still happens and an error message appears saying that cannot find the Photon server.

Does anybody Knows what can be happening? How can I solve this failure?