So there is no solution at all to this problem??
For me, filmhobbit.com is my primary domain, but cinemablend.com is my parked domain.
so my forum is accessed through
www.filmhobbit.com/forum as well as
www.cinemablend.com/forum
for me it is essential that I be able to do this, but ever since I parked cinemablend.com my forum is having severe problems with cookies.