I think it was me that turned your pm's off. I can't remember exactly why, but I think it was over listing items for sale in a forum other than the classified section... You have to list items there and you have to be a subscriber to post there. This is one of the few additional benefits that our paid subscribers get over the members. Whenever someone trys to circumvent that rule by listing an item for sale in any forum other than the classifieds, we turn their pms off. If this was not the reason, I apoligize, but it's the only thing that comes to my mind. I know it wasn't spamming, which is our #1 reason to lose pm ability, so I would guess it was the former.
Anyway, you're turned back on now. Time to clear out your inbox and return those messages!