I think I’m stupid 
Have sent several PM’s before but now it seems not work anymore.
Could someone explain how to do it.
I fear I know how to but as I said in the first line…
Two ways to do it:
1- Clicking the PM link at the bottom of someone’s post.
2- Click on the Private Message link at the top, than click New Post. You will then have to type the username of the person you want to sent it to in the Username field.
Martin