I replied to a couple pm's tonight and clicked send but they don't show up in my sent folder. Now I don't know if they actually sent or not. Anyone else had this happen?
If there is no check mark in the 'Save a copy of this message in your Sent Items folder.' then there will not be a copy in your sent folder. I have not had problems sending PMs (always get replies) but I will admit I don't look in the sent folder either.