[Irinikus]

Ok I think I might know what his problem is, as I initially had the same problem with mine.

When I first got my Onyx2 it also didn't seem to output graphically, as it was outputting at a strange resolution that was not supported by my monitor, as a result I had a black screen.

Through a process of elimination, I tried to run the machine with only one Raster Manager installed, and as a result, it defaulted to a resolution of 1280x1024, which allowed the monitor to output.

There is a way to set it to run at 1280x1024 from the prom, I will just have to quickly look for it. (@janjaap suggested it to me.)

EDIT

Ok I found it, the command is: ireeprom (In the command monitor) This command will wipe and reinitialise the Infinite Reality graphics system.