QTR-Quadtone RIP

Epson7500, K6inks, WinXP.  Nozzle check is OK.  I had to format the 
harddrive and reinstall everything.  Since then, areas within a b/w 
image that should have good tonal range and contrast are coming out as 
large areas of flat, mid-tone grey.  VERY BLAH!  I was turning out 
great prints.  I've done a monitor calibration and am sure I've got 
the QTR Gui set up properly.  Using Hahnemuhle Rag paper so the 
profile is already in the QTR.  I've updated the version of QTR to the 
latest.  I ran another print of an image that was coming out great and 
again the flat, ugly mid-grey areas of what should be contrasting grey 
tones.  Thanks for any help/suggestions.  Pat