What times my comp even senses it Device Manager lists it as "Unknown device" under Universal Serial Bus controllers.
Phone settings hadn't changed, but I have tried it on all of them while troubleshooting. Currently set to MTP, though.
EDIT: OK, that is weird as hell. On a lark I unmounted the SD, removed it, inserted it, and remounted it. While I had the back off I lulled the battery and then rebooted. BAM! It started working again. I had already done all of that before. I guess I wasn't holding my mouth right or something.