Connect to networked printer from Vista Business

Hi all,
I'm trying to deploy a Dell 3110cn network laser printer via group
policy to a 32-bit Vista network (print server is Windows Server 2003
R2 SP2), and I cant get it to work! Has anyone managed this?
I've obtained Vista drivers for the printer & added them to the svr
2003 print server by using printer properties->advanced->new driver.
Every time I try to even connect manually to this printer over the
network from a vista client I get an error saying "Windows cannot
connect to the printer. The specified print monitor is unknown".

I;ve checked UAC settings, and that fix doesn;t help since UAC is
already enabled...

thanks in advance,

bud