As soon as I select 'PC generates' for my CW generation, the interface = to my rig dies. I'm using COM3 as rig interface, COM1 as CW (DTR) interface. Rig is = IC-746pro (using 756pro selection). DXBase survives this setup, so I don't think it is a com port problem. Any ideas? Thanks! -Steve --- StripMime Report -- processed MIME parts --- multipart/alternative text/plain (text body -- kept) text/html ---