I downloded today the latest release R5.12.0 and after instalation I get the same problem as with the previously instaled version R5.10.07, namely the voltage display swings between 0 and approx. 1.2 V independent from the actual voltage. This problem accurs after updating my laptop operating system from Win 98 to Win 2000. I use the parellel port conection together with ADC 101 The Voltage range for the measurements I selected was +/- 10 V. The actual volage range of the measured data is DC from 0 to 10V. The parallel port setting in BIOS is bidirectional enabled.
I thank you anticipated