Printer not available in Remote Desktop session

Running Vista Business on an HP machine with a PSC 1410 printer.

Connecting to a remote computer via Remote Desktop Connection

we are able to make the connection and use the software on it,

but when attempting to map our default local printer it does not

show available in the list of printers. The Printers box is checked in

the

Local Resources tab of the RDP connection and the printer

works normally when not in a remote session. The printer

is connected via USB.

Any help appreciated, as every question of this type I've seen

in any forum seems to remain unanswered :-(

Mike