This is probably the most ridiculous help I've ever asked for.
I've just set up a server 2012 domain (first one) and the end users are unable to get to control panel or printers/devices, therefore can't change their default printer. I presume group policy prevents this, but can't see why as the group policies are the same as previous server 2003 domain.
How can they change their default printers?! Can't find it anywhere. Probably something to do with my lack of sleep over the last 4 days setting up the new system!