I have fixed the problem, Shut down the whole system rebooted the admin pc, ran the emergency recovery on the database
and its all back to normal, everyone can now log in.
I have no idea what caused this, but at least know for future events !

It was great to see the presenter on airs face when I said, right your off myriad until further notice LOL
thanks to everyone that offered advice.

Regards,
Paul Moore

HitMix Radio
0792 858 1075