I'm running 7.1.1.

I have two users reporting the same problem.

They can reply to PMs, but they can't initiate them. When trying to initiate a PM they click the submit button and they say nothing happens.

I've checked that they are not ID'd as underage.

Also, their user names contain no special characters (TommyTrebble and Falcon).

Could it be an issue with cookies?

Or, a browser setting? (I've attached browser specs for one user.)

Thanks for any tips.

Attachments
441-user-browser-stats.jpg