[Dx4win] Windows 7

[Radivoj Kar, F6GNZ]

Just found why my DX4WIN  often freezes and/or stops controlling SteppIR and rotor on my new Windows 7 32 bit Home Premium laptop: USB FTDI RS232 devices (MicroHAM Keyer/USB Router, FTDI USB/RS232 converters for SteppIR and rotor control just stop  responding for unknown reason. I have to unplug and plug-in the related USB cable, then it re-starts working, except that in some cases I need to exit DX4WIN and re-start it again !

Any suggestions how to solve this issue???
73, Radi F6GNZ