Pro Tools 10 With Eleven Rack armed mutes in play mode

Hi,

I am new to pro tools 10 and Eleven rack. When I arm a track in pro tools to listen to my Eleven's Rig in wet mode. I hear it fine in stop mode, but it mutes in play mode, unless I go directly into record mode. Is there a setting in pro tools or the eleven rack that is preventing me from auditioning the eleven rack to play along without recording?

Thanks,

JMT