I've resolved this issue, and then just got the email confirming this. Basically
it was just that I needed to select the correct printer driver from within The
GIMP. Everything's now working fine, and this can either be marked as resolved,
or as invalid - wasn't ever really a bug. Having said that, if there's some way
to have GIMP use the same printer driver as the system, that would help.
I've resolved this issue, and then just got the email confirming this. Basically
it was just that I needed to select the correct printer driver from within The
GIMP. Everything's now working fine, and this can either be marked as resolved,
or as invalid - wasn't ever really a bug. Having said that, if there's some way
to have GIMP use the same printer driver as the system, that would help.
Thanks, Tom