crizdee,
I e-mailed PSP about this a while back. I can't get it to run a single instance in FAT mode at 96 kHz in PTLE with a Quad Opteron 265, 4 gigs ram, one stereo track, buffer at 2048. This is a computer that will run 147 D-Verbs at 48 kHz. I've been taking the OTR Mastering route and just "don't" use FAT mode at 96 kHz.
There is obviously something wrong here.
Greg