I have to start by saying I feel like a bit of a selfish member. I joined the forum about a year ago when I was setting up my system. After several purchases and tweaks (many thanks to the good advice of fellow members) I stopped posting, instead I lurked in the shadows, reading and learning. Now I'm posting again because I need some help. :) I recently replaced my Pro-Ject Debut 3 TT with a Pro-Ject RPM 9.1, I had a Ortofon 2M Black cartridge installed on it. I have only had it for about a week now, but I have to say it is incredible. Everything I had been promised about the warmth, glow, richness and majesty of analogue music has come true! I've been blown away!! People use the phrase “night and day difference” quite a bit , including myself, but this truly is the case between my old deck and this one. So you may ask “whats this guy's problem?” Well the issue is when I go to play a record I put the tone arm in place then lower the tone arm lever as per normal, as the tone arm goes down it starts moving left and right on its own and finally rests somewhere on the record, not where is it was suppose to. I had the cartridge professionally installed by a dealer and after discovering this issue I called him up. He advised be that the anti-skate weight was too high and told me to lower it one position (three positions on this arm) he also told me that the recommended counter weight may be too low and so he suggested I move it from 1.5 g to 1.7. After trying both of these suggestions I have not had any improvement. Wondering if there is something else I could be doing...