anyone know how to remove the stand from the main body of the tv? i wall mounted mine the other night but i've had a nightmare of a time trying to get the stand off. there's a HUGE nut on the underside, so have eventually managed to loosen this and remove it after blood sweat and plenty of tears. but even with this off, i still can't remove the stand section. there's nothing in the manual on how to remove it, even on their website. anyone got any ideas?