We have a ADC-100 unit that have been working fine for years, but recently we replaced the computer with a new Dell laptop (Windows XP professional SP3). We also bought a new Parallel Port to USB converter.
The problem is that when we are measuring mechanical movement (with a laser equipment). We get the correct values for a couple of measurements and then the reading in Picoscope jumps to the maximum value of the scale (doesn't matter what scale we use).
But if I turn the Voltage range on either channel A or B to OFF, you once again get the correct values. But this only works for a short time until the same problem appears again.
In Help -> About it says the following:
Release 5.20.1 - 32bit
ADC100/101 USB Driver V3.1
ADC100 on USB-PP1