I am running Win2k. I can start from the default configuration and change any button on the first page of any device to cause the problem. Don't even have to download to the box - just saving the file corrupts the buttons (only the device overview buttons). I am also working with updated firmware and the latest version of NEOedit (v1.3).

Same story with the virgin default file that came with the software - that is the only configuration that doesn't mess with the device overview buttons.