[Dx4win] DX4WIN "Not responding"

[Rick]

I wonder if anyone else has seen this problem and has found a work-around?

I'm using DX4WIN 9.0.4.1176, along with an IC-7000 on a Windows 10 
laptop. The radio talks to DX4WIN through a port on a Microham CW keyer, 
and it also talks to WSJT-X through a second port on the Microham device.

This setup has worked perfectly for a long time, but recently I get a 
"not responding" indication every so often, after I hit a key to perform 
some function in DX4WiN. The  program freezes for a while, then recovers 
and seems to work normally.

If anyone else has seen this behavior and has figured out a way to stop 
it, I'd appreciate knowing.

Thanks, Rick K0XB