Scott and Bob,

yes, I have sent e-mail to Roland Smith (KeySoft Service) and got one repply but never answer to my doubt about error/fault in software/hardware.

O.K. I have worked using that external LPT-card because my friend also had the same problem - and he neither got any answer from KeySoft Service. Both of us are working with additional cards.

Is this enough for verifying that the cable is O.K.? Maybe not, I made measurements on the cable and there was no breaks or short circuits but the doubt is that there is a 17 ohm resistance from PC ground to KN5000 ground! This may cause erronous behaviour of the connection on certain configurations, I'll try to make a new cable without this resistance, this will take some time to catch the material. For your interest there in a 'hidden' drawing on my measurements at: http://www.dlc.fi/~matsai/KN5000-ParallelCable.htm

Thanks for informing about the possible cable fault,
Matti