Rega Planar 3 Help/Advice

I recently purchased one and have received it but when I went to put it together I put the belt on the subplatter and then the glass platter. I turn the machine on and the belt flaps and will not turn the platter. I take the glass platter off and the belt spins on the subplatter just fine. When I take the belt off the subplatter it pops back into a perfect circle so it does not appear to be worn. However, I have ordered a new belt just to be sure. I notice when the belt is installed the motor pulley bends in toward the subplatter. Is this normal? This table was purchased for a second system that frankly won't get a lot of play so I don't want to have to spend a fortune on it to upgrade it but I would be open to some easy tweeks that don't cost a lot. I have several other questions about the table. If there would be a knowledgable member willing to share some advice via email or phone would you send me a private email and let me know how to contact you.