Printing dialog not listing CUPS printer

[Hans Nieser]

Dear fellow idiots,

On my LAN at home I have a printer (HP Deskjet 990c) shared through 
Windows Networking. I want to use this printer from my desktop (Gentoo) 
and laptop (FreeBSD 6.0) computers (which both run Gnome 2.12.2 as 
desktop), so I installed cups, gnome-cups-manager, the hpijs driver and 
cups-smb-backend. On both computers I have added the printer using 
gnome-cups-manager where it shows up in the UI and also succesfully prints 
the testpage.

Now, on the Gentoo machine, all is fine; I can launch any application and 
hit "Print", select my Deskjet and it beautyfully Just Works (tm).

On my FreeBSD laptop however, when I launch any application (well, I tried 
gedit, evince, Screem and OpenOffice) it doesn't list the printer and only 
lists the "Create a PDF document" and "Generic Postscript" items.

I tried printing to Generic Postscript which uses lpr, but nothing 
happened. Restarting cupsd didn't help, neither did rebooting the entire 
machine (I am slowly starting to realise that that trick only works on 
Windows). The printer is listed in /usr/local/etc/cups/printers.conf and 
/etc/printcap. I couldn't find any related errors in the CUPS error log.

Depressingly, most search results I got on Google were about some guy 
named Linus calling me an idiot :(

Can anyone assist?