Unhappy with New Les Paul

[muttley600]

I'm vindicated! ;^)

A sticky nut (for the tuning probs, not the buzzing frets) was my diagnosis.

Yep quite possibly and that is the most basic of things to do during a setup as stated right at the top of this thread, checking the nut and the slots should have been done. Like I keep saying take it along to the shop and get a refund for a setup paid for and not done.