Dual Monitor setup with Horizon View client running Red Hat?

I have one thin client HP and a Zero client iGel. I am running horizon 7 with the blast protocol.

I can't seem to get dual monitor setup for the Red Hat vm. Sure I can see the Horizon View Client splash page , but when I try to log in to the vm I only get one monitor.

Am I banging my head again st the wall for nothing ? Someone tell me I have missed something easy

Thanks,

D