Currently I have MAX 3.1 and DAQ 7.2 with LV7.1. I hook the SCB-68 to the 6036E daq card and wire a 5 volt input to any ACHx channel in differential mode. Using MAX, I measure the voltage say at channel 0 and I get a reading oscillating between 0 and +10 volts. In fact with the voltage input remaining at channel 0 and using MAX to explore the other 7 channels, I get the same oscillation. For such a simple procedure, I don't understand. Any suggestions?