I think I have discovered the problem. Even though I had closed the Phidget Management software, it had left a Phidget process running that was attached to input 0. I can't repeat the problem to test as I installed the Phidget21 driver (which works with my older code on Windows 10) and this seems to...

Thanks for the quick reply. I've tried your suggestions without success. The first input on both cards does not attach. I tried again with just one Phidget, but this had no effect. Public Class phidgetInterfaceClass Dim WithEvents kit As Phidget22.DigitalInput 'WithEvents kit As Phidgets.InterfaceKi...

Have just installed latest Phidgets software and have converted visual basic software for Phidget22 API. Our application uses two 16/16/0 boards and the new Phidget Control panel shows both are working. But when I run our code, the first input on both boards does not attach. All other inputs are fin...