Private Messaging Problems?

[kmw]

Private messaging - problems when replying to an existing message?  Or problems sending a private message?  If you're having problems sending a PM, be sure the user name is correct - the display name and username can be different.  If you are having problems replying to a PM, what does the error say?  What browser are you using?  What operating system are you on?  This info can help determine if the problem is with the site, or on your end.