I don't know if it's me or what. But I have just realized that on a number of sites that I have built the BFP Custom Fields are missing from my page editor. I have dumped plugins etc. to no avail.
I can't say I have *fully* investigated but it seems to be a WordPress 3.1 problem. I have seen the problem on ATA 3.5.3 through 3.6.4. with 3.1. I have not seen the problem with any WP version under 3.1.
I haven't yet checked all of my sites... but this is the way it seems to be tending...