Datacolor User to User Support Group.

I've been using a Colorvision PrintFix 2 Pro for about 9 months. I've 
calibrated both of my main displays and I'm happy with my result.
It's a Samsung 226bw. It profile's fairly neutral, with a very slight 
warm tone. 
My issue is my Epson R1800, running an Ink Republic CIS system. I've 
never got colours that I'm happy with. I'm using Ilford Smooth Pearl 
paper, because I like it's texture and the IR inks aren't very 
glossy, so glossy papers look wrong. 
So what's my problem? The output has a strong green cast. I have used 
the large patch and I've used the extended greys. I allowed the 
targets a week to dry before calibrating, I printed the targets from 
Photoshop CS2, making sure that no profile was selected. I've ran the 
Printfix pro software along side photoshop (restarting it ever time I 
made a profile change) and I can't get this paper neutral. There is a 
really strong green cast still. If I print a grey scale, it's more 
like a green scale and there's odd pink colour bands in the greys 
too. Is there something that I'm doing wrong or is that this device 
isn't accurate enough to fix this paper/ink combo?

Regards,

Gareth Cooper