Autoguiding problem

Hello All

I've an EQ6 mount for which I want to autoguide with. I've also an ATIK
ATK-16IC CCD camera and all the relevant cables. I've also downloaded &
installed Iris & Guidedog. The problem is that these two say there's no
camera or camera not found. I know the camera works because I can take
photos with it using the software that came with it. So my question is where
am I going wrong? The camera is USB but I think Guidedog & Iris are looking
at the LPT port.

Any help would be appreciated.

Neil