The key right below the x ( \ ) outputs § (or ± using shift). That's after I reset it to default. According to sales at Kinesis, that's not the default output and they think the previous owner reprogrammed the key.
I've tried deleting any macros associated with it, but it's not working. Yes, I know I can just remap it to something else, but I'm curious how the key's default could've been reprogrammed.