just tried it again and its tending to skip towards the middle of the record
sometimes when i press the 33 button to get the arm to move over to the start of the LP the arm isnt even high enough to make it onto the record and just knocks into the side. I have a thin rubber platter cover on the turntable but i assume you dont put the record straight onto the metal anyway so this shouldnt make any difference?
also the screw that you mentioned in the other thread with the red arrow apppears to be holding the arm up. its leaning on top of it.
Thanks for all your help!