audio inserts on FX tracks in Cubase?

[Garehead]

I used to use Altiverb on FX channels in CB7 but since Altiverb is such a CPU hog, I'm trying to use them in my VEP server. I've tried using a VE audio input as an insert on one of my FX channels in Cubase, to link to an instance of VEP (server) running Altiverb and this seems to work, but only when the sequencer is stopped. As in, I can play a midi track live, with a send of that instrument sent to one of my FX channels with the Vienna Audio Input linked to the server running Altiverb. I see the input in Altiverb and the reverb audio runs back to CB and I can hear it, no problem. However as soon as I start the sequencer this send is cut off. Once I stop the sequencer, I can hear the reverb for a brief second. I've got the solo defeats on on the FX channel so when I solo an audio track the send stays on. Don't know why the send is cut off when I hit play! What am I doing wrong here? Anyone using this method? Or do you have to set it up in a different fashion? Of course using the VEP audio input as a send on an FX channel would provide a lot more flexibility and convenience, rather than having to use an audio input insert on every audio channel that you want to apply reverb to. Any suggestions would be much appreciated!