Concerning the problem of deleting private messages, I just created a brand new forum on one of my domains and the error wasn't present. Over the weekend, I will try something, but it will require me to shut down the forum. I will try to do this at a less problematic time for you guys. I'll keep you posted but if the forum isn't available, it is because I am working on it.
Jacksonville Fairgrounds Gunshow
Jacksonville Fairgrounds July 25-26 $9.00
.................. 
...................
...................