QTR-Quadtone RIP

I'm using Intel Mac, 5GB Ram, Mac OS 10.4.11., Epson 4000 via USB.  I recently upgraded 
to QTR 2.6 from 2.5.2.  When I tried my first print, the Printer Utility said "terminated 
unexpectedly on signal 10," and nothing printed.

The Print Gimp Errorlog.command says 

 [31/Mar/2008:13:48:11 -0700] Started filter /usr/libexec/cups/filter/cgpdftoraster (PID 
3603) for job 531.
I [31/Mar/2008:13:48:11 -0700] Started filter /Library/Printers/QTR/filter/quadtoneprint 
(PID 3604) for job 531.
I [31/Mar/2008:13:48:11 -0700] Started backend /usr/libexec/cups/backend/usb (PID 
3605) for job 531.
N [31/Mar/2008:13:48:11 -0700] [Job 531] : QuadToneRIP: using curve UC-
EEM2880Unid-warm
N [31/Mar/2008:13:48:11 -0700] [Job 531] : QuadToneRIP: using curve UC-
EEM2880Unid-coolSe
E [31/Mar/2008:13:48:11 -0700] PID 3604 crashed on signal 10!
I [31/Mar/2008:13:48:11 -0700] Hint: Try setting the LogLevel to "debug" to find out 
more.
I [31/Mar/2008:13:49:18 -0700] Adding start banner page "none" to job 532.
I [31/Mar/2008:13:49:18 -0700] Adding end banner page "none" to job 532.
I [31/Mar/2008:13:49:18 -0700] Job 532 queued on 'Quad4000' by 'donaldlysons'.
I [31/Mar/2008:13:49:18 -0700] Started filter /usr/libexec/cups/filter/cgpdftoraster (PID 
3632) for job 532.
I [31/Mar/2008:13:49:18 -0700] Started filter /Library/Printers/QTR/filter/quadtoneprint 
(PID 3633) for job 532.
I [31/Mar/2008:13:49:18 -0700] Started backend /usr/libexec/cups/backend/usb (PID 
3634) for job 532.

Any ideas?

Don Lysons