New TG-1 arrived DOA
I just got mine at a store 2 days ago, made sure they had extras to exchange if necessary. So far so good, none of the issues I've read about (besides the fussy autofocus during video -- keeps refocusing, but I don't suppose there is anything to be done about that?).
No funny clicking during video, and it really is fast and responsive. I'm also quite happy with the battery life.
Let us know how the exchanged cam works.