QTR-Quadtone RIP

Anybody having trouble running QTR in Leopard? I was happily using QTR with Cone's K7 
inks on a 2200. Made the change to 10.5(PPC) and, although all the workflow windows, 
dropdowns, options, etc seem to be in place - as they were in Tiger - clicking on Print begins 
printer communication as usual and then stops the process. I've reinstalled QTR as well as 
the profiles. No problems printing using native Epson drivers. Just can't get QTR to run.

Regards,
kingdex