[Dx4win] Cat problems with Dx4win

[Kostas SV1DPI]

One closed friend asked me to help to solve a problem with cat control 
and dx4win. I solved the problem but i would like to mention it here. 
Maybe someone has the same and find a solution or Paul does something 
for it. So...
My friend had a kenwood 850 and a serial cat interface bought from ebay. 
He used a prolific usb to serial interface to connect it with the 
computer. Dx4win was giving timeout while Ham Radio Deluxe could read 
normally the radio!!! After some search the problem found to be that usb 
to serial was plugged to a usb hub. When we plug the usb  to serial 
direct to a computer's usb, both dx4win and HRD work normally. I suppose 
that dx4win waits for a quicker response from the radio in compare with 
HRD.  Tests with a slower poll rate (I think 500ms) didn't solved the 
problem.

73...Kostas, SV1DPI