[Dx4win] Sound card error

[Floyd Sense]

Running DX4WIN 5.03 on Win98/SE, with Echo Gina sound card.  There are
two sound cards in the system, the other being an Ensoniq.  Today I
opened the PSK31 window in DX4WIN for the first time, and got an error
that states: "Error starting the soundcard.  Card doesn't support 16bit,
8000Hz, mono format."  I get the DX spot announcements OK from DX4WIN
using the Echo sound card.  Anyone know what's going on?  I've not found
anyplace where you can specify which sound card the program is to use -
did I miss something?  
 
K8AC
Floyd Sense - Angier, NC