I keep getting a warning saying ive used 100% of PM space, even though I deleted 2 thirds of both the inbox and outbox. IT does not seem to register when a new PM was sent or not in the inbox. What should I do? Is there something I need to do to reset it?

The Admin CP settings only show for enabling it and what code can/will be displayed so there isn't a limit to PM space per user that I'm aware of. winmutt will have to check if there is a server-side limit or issue, I can't get to the hardware or core software.

figured it out, the problem was that I was just moving everything into the trash can. I had to manually go into the trash can folder and re delete the contents of the can.
I would have known this, had I fully read the contents of the email the forum sent to me-

This is an automated email from SuperTurboDiesel.com- Performance Mercedes turbo diesels to let you know that your Private Messaging inbox has reached its capacity.

One or more users may have tried to send you private messages and were unsuccessful in doing so because of this.

Please delete some of your private messages you currently have stored, remembering to also delete them from the 'Trash Can'.

Whoops