Scrubbed the laptop clean again, installed PP2014 this time. All worked fine, param fields show up where they're supposed to. Bit the bullet and deleted Poser from the desktop completely (all my runtime libraries are separate, thankfully). Deleted all the SM folders from Appdata, rebooted. Ran a registry cleaner to delete the Poser residue (and caught 40 bots in the process), rebooted. Reinstalled PP2014 and BAM! Param fields still in the wrong spot.

Good thing I've gotten used to this... probably something to do with the GPU/drivers as it seems to have no issues on the laptop using the same OS.