Thanks!
Got the RMA, sending it back. Hope the new one doesn't have the issue. And I also hope they don't give me any grief about the condition, since it is no longer "as new" - I've been using it for a couple weeks. The paint on the front of the m10 can scratch, where the r09 is molded plastic and doesn't show minor scratches.
It isn't a Huge problem, but it is a problem. Especially with a 16GB card, because it slows the boot process significantly. When the subject you are recording is ready, and you switch off hold and end up shutting down.. it's awkward to say "wait - I'm not ready, I need to restart the recorder!" Awkward! And if it's a performer coming on stage, you can't say wait. And at 24/96, I am less inclined to roll continuously.