neutral safety switch/backup lights

[Sinister]

I went to check my backup lights last night. My girlfriend said no backup lights in reverse, but that they came on when I was either in drive or neutral, don't remember which though. I went to adjust the switch this morning, following instructions in this post: Adjusting neutral safety switch
I couldn't get the lights to come on in any position of the switch. I also can start in park but not neutral. Anybody have any ideas, I'm kind of stumped...