Digital BW, The Print

Hi folks,

I'm trying out Roy's QTR on my 9600 and hoping to use it with my 4000 
soon.
Nudge nudge wink wink.

QTR was working really well for each test I did until I hit a little 
bump in the road.

I'm using a G4 running OSX.3.4 as my print server.
The print is a 15"x60" 8bit grayscale gamma 2.2 @ 360dpi image.
Printing starts off normally, chugging along to about 16", then stops!
It's done this many times, with different files, and every setting 
change I could think of.

Any ideas?

Cheers,

John Toles
http://www.dragonflyprinting.com/
http://www.dragonflygallery.ca/