Automount no longer working

[Phil]

Thank you for reading this.

For some strange reason external USB devices are not longer being 
automounted.

Also for some strange reason the "Enable automatic mounting of removable 
media was unchecked plus all of the "Automount on attach" check boxes 
were also unchecked. I expected that ticking all of the boxes would fix 
the problem but instead Device Notification displays "Could not mount 
the following device" etc

I've also installed "usbmount" although I've never had to install it in 
the past.

Can anyone offer any suggestions to fix this?

-- 
Regards,
Phil