Yes, Roland and me spent a lot of time in relation with this bloody Win7. Most bugs are fixed, but not all.
Manual includes not yet detailed cabling for micro client (Murphys law: i have done wrong), Mic symbol should be have color red in case of transmit not green, in moment i cant TX via micro client only via HRD. But maybe this is also an human error by OP :-), after soft starts you have to move volume slider of HRD to get any audio from TRX
Hope all this little points and can easy fixed.
My reagrds to the RemoteRig team for the fast fixing
73 Chris