One on one messaging conversations can now be initiated within the Chat area, provided both parties are in Chat.
If you see a member ‘Available in Chat’, you can click their name to initiate a Chat conversation with them. Of course, they may choose not to participate since you will be initiating it without prior notification.
Instant Messaging (as described above) should work on computers and some tablet devices, although it is not currently working on mobile phones.
We are working on the Instant Message system as an extension of our Chat system, and hope to have it working on mobile devices in the near future..
It could be that they are engaged in Chat elsewhere in the site, or they may not be interested in chatting with you.