Hi all,   I just got the said model, it does seem to work fine, the only issue is that I wasn't able to figure out how to play 12" at 45rpm... as if I put a record on and press 45, the arm moves to the 7" inch position. I tried hitting pause and then moving it to the initial groove (already not ideal) and then pressing 45 again, but it goes back to the 7" start position... 12" at 33rpm play fine, tried pressing 33rpm and then 45rpm but again it goes to 7" start... any ideas what could be wrong?