PM Troubles

So I was trying to send someone a PM and got the following message:
"You have reached your stored private message quota of 1000 messages. You have 1338 messages saved combined in your private message folders. You cannot send any further messages until space has been created."

So I go into my inbox and only have like 50 messages. But then I look in my send messages and I have 67 Pages of messages going back to 2008. I swear I had deleted most of these long ago (When we had like 100 message limit). So at any rate I take the 15 mins to delete them one page at a time, just to find out all I did was move them into the trash. So I take another 15 mins deleting them permanently from the trash. I now have less than 100 messages in my boxes.

Problem is I still get the same message, and cannot PM anyone. Is this just a timeout thing that is checked once a day? Or a larger problem?

Thanks in advance