Hi,
On win10 with wspr I have used many times in the past with no problems. But recently I get an error message .

Error in Sound Output.
An error opening the sound output device has occurred.

The program also freezes and will not close. I have tried running in as admin. Also compatible win7 with no success. This only occurs on wspr not with other modes.
Any advise would be appreciated.
Regards,
Sid.