I just picked up an Everdrive N8-Pro and the Zapper seems to be working on mine. Do you know which version of the OS you're running? You can check it by hitting SELECT at the Everdrive menu and selecting Device Info.
When I was testing, I was using OS Version 2.15. Could that be it? Once I'm done with the convention this weekend, I'll try changing my OS version and see if that reproduces the bug.
