Guess I didn't explain myself clearly... when I used to click on ".WAV" it brought up a Record Control window where I select 'midi' and then click 'render to WAV file'....

On W7, it pops up a 'sound' window, and there is no 'midi' option - just microphone... and then tells me 'no wave input devices installed' and starts the rendering, but results in a blank file....

Hope this clarifies things a bit.... thanks!