My graphictablett (ODYS, Multi Graphic Board 12") does not work with PS CC but it works fine with my Windows 7 64bit, with PS Elements 7 und with Paint. When I try to use it in PS CC, there is no painting (I checked all brushes), painting only functions, when I push the left mousbutton, but only for a short period of time. What ca I do to make it work properly? I checked the drivers, no problem there.
Contact the maker of the tablet and see if they have driver updates.
Yes, the drivers are the problem.