Thanks Rog
I gave that a go and it did work however powertracks was kind of quirky . Sometimes the built in mic would be active and picking up every sound in the room. Othertimes not.
Deselecting all output drivers gives the message "no output drivers selected' Continue anyway? Yes.
I then set up asio4all as you suggested and did get the synths to play the selected patch.
Set up this way I guess I cannot play any midi tracks since there is no output driver selected. Am I correct that all tracks except audio have to be played through a dxi or vst synth with this setup? I CAN play midi tracks thru dxi however this seems like an awkward arrangement.
I also an access violation error message a couple of times. An access violation in module ptw.exe. Hmmm....