Problems With Sending and Deleting PM's

As the title says, I have been finding troubles with my PM's. I couldn't delete them and also with replying to PM's I had many problems. Finally after trying it many times it worked but it is a nightmare.

Anybody else has this problem or is there a setting solution for this???

PS. I know that there was an topic already opened about not able to send messages but since his problems were only in regard to sending and his problems were solved, I thought it would be a good idea to open a new topic.

 

I get this problem from time to time... also I will read a message and reply, yet it will still shown as unread in my inbox. Like I said... it's only an occasional issue and the problem usually sorts itself it.