We’re using ePrime, and we just recently upgraded our response devices from theirs to yours. We’re really happy with the change, but recently something odd started happening: when the Lumina controller is plugged into the laptop, the mouse cursor jumps erratically around the screen, occasionally selecting things as it goes. It’s not that it amplifies your mouse movements, it’s that the mouse just takes off on its own even when the user stops touching the laptop.
It’s a problem that has developed over time, happening with increasing frequency, and it is specific to the Lumina controller – when we plug in (and use) the ePrime response pads, the mouse is fine. When we plug in the Lumina controller, the weirdness begins. It’s also not confined to ePrime – that is, ePrime doesn’t have to be running for the mouse to go haywire. So, it seems to be a Windows thing… (another reason to avoid Windows…).
Have you come across anything like this before?
Thanks in advance!