New users cannot send PM's. This is an unfortunate restriction we had to put in place because occasionally a spambot would register and start sending spam-PM's out to members ... Obviously not something we want.
For the same reason URL's are not allowed, it does help prevent some spambots from posting (Because they can't deal with the error) or at the very least help limit the damage.
These restrictions will be lifted when:
A user has posted 5 posts AND has been registered for at least a day.
OR
Has been registered for 5 days AND has made at least 1 post
Whichever comes first.
I'm sorry for any inconvenience caused