Digital BW, The Print

After downloading and installing QTR & QTRGui last night, I
experienced  some difficulties in getting QTR to print to my USB Epson
4000 printer on Windows XP.  In particular, the log file reported that
QTR was "Unable to write raster data to driver".  I had enabled file &
printer sharing, had installed the Microsoft Loopback Device, and
thought everything should be working, but no luck.

After much head-scratching, I found the problem:  Norton Internet
Security's Personal Firewall had a rule that was blocking Windows File
Sharing.  In order to fix this, you would either need to get rid of
that rule (and perhaps open up a security hole) or you can add another
rule that specifically allows Inbound "local netbios-ssn (port 139)"
connections specifically from your own computer (and perhaps from the
loopback address).  There is probably a more elegant way to fix this,
but it has worked for me (a neutral B&W print has just come forth from
the 4000!) and it might be helpful to others.

-ajwerth