printing stopped working--any ideas?

[Luke Call <lukedebian@onemodel.org>]

When I try to print directly to /dev/lp0 from the command line ("cat 
filename.txt > /dev/lp0") nothing happens; printing from applications 
like gimp doesn't work either. It did work until recently, and I've 
tried various HOWTOs, searching the web, and taking the system back to 
the same configuration it had when it was working, but now I'm stumped 
and out of ideas. It's not the printer because it works when I boot 
windows instead. Any tips or things I could try?

I'm using a debian "stable" system on intel, with some packages upgraded 
to "testing", and a 2.4.5 or 2.4.17 kernel. It did work with this 
configuration before, not sure what else I may have changed. Thanks in 
advance for any ideas, good or bad.

Luke Call