[Dx4win] Cut off the speaker when transmitting PSK31.

[BielefeldJ@andovercontrols.com]

Hi, While transmitting PSK31 using dx4win I wanted to mute the speaker from the sound system.
But if I use the mixer volume control to do this the TX level drops as well. If I check the mute on the mixer volume control
the TX is dead. So how do I kill the howl while transmitting. It's quite annoying. The speakers do not have a
mute switch. The speaker's volume control is non functional as I have an amplifier in the sound system and as such the
speaker's power amp is switched off. I hope it's not another Compaq feature....
Regards,
John
K1JEB