Well, I don't have an EWI... yet... but it sounds like you hve to check out your audio midi setup. Is the program supposed to send a midi trigger to the EWI so the EWI makes the sound, or is there a software synth that comes with the editor? If the EWI is doing all the work, you may have to see if there's a switch on the instrument itself that toggles the MIDI in, otherwise, it may be disabled. Alternatively, there may be something similar in the preferences on your computer's software... either remotely enabling MIDI in on the EWI, or enabling MIDI out on your computer.
On the other hand, if UniQuest is actually a software synth, you may have to check your audio setup within your computer's preferences and within the program to make sure it is set up to play through your sound card. Many higher-end synth programs let you specify a different audio output from the default one for your computer. I hope some of this info helped, man. Good luck, and let me know the deal, cuz I'm looking forward to getting the EWI myself, soon!
On the other hand, if UniQuest is actually a software synth, you may have to check your audio setup within your computer's preferences and within the program to make sure it is set up to play through your sound card. Many higher-end synth programs let you specify a different audio output from the default one for your computer. I hope some of this info helped, man. Good luck, and let me know the deal, cuz I'm looking forward to getting the EWI myself, soon!