That has happened a few times to me, as well, but I just sent him a second message and he responded right away. People just get busy and bogged down. Happens to me often at work, too. I'm sure Brett gets a million and one PMs here each day. If you really want to get in touch with somebody, email them directly or, better yet, pick up the phone. Anyways, Brett is great. I will let you know why in a few weeks.