Messages Application not alerting, pls advise
Note: This is a Mac problem despite references to iDevices below.
Background...
Having fun with having Mac, iPhone, iPad all in sync when sending and receiving using Messages Application even when using mobiles phone numbers as the destination. Of course the mobile number has to be linked in to a Apple ID that you have setup with Messages.
Ditto with the other person you are messaging. I type a message it appears on all my Apple stuff, as it does the other person. No problem with the getting the text on any devices.
Problem...
However on the Mac no alerts are occurring. That is, no built in old iChat style Messages alerts like sounds or dock icons bouncing, nor the new ML Notification manager, not one indication on the Mac that you need to open or bring Messages Application to the front to see a new message.
I have checked settings, and tried with Messages Application open/hidden or quit, makes no difference.
Similar configurations with iDevices work fine. That is they will bring up their respective notifications as per their settings. The lack of alerting is just a Mac problem hence why this is in Apple Mac OS X discussion.
However here is the rub, if I send a message to myself it works! In this case even if the Messages Application is quit, the dock icon show a waiting message count, and over in the top right hand corner near Notification icon there appears an alert.
So in summary, messages come in on all devices in a conversation, alerts only come in on iDevices, except when I send to myself.
Both Macs involved are running the latest ML 10.8.5.
Any thoughts? (It really feels like a bug in Mac OS X)
TIA.
OS X Mountain Lion (10.8.5)