If you are using Suitcase there is a known conflict with ATM. Inserting a space after the tilde and before the 'S' in ~Suitcase MenuFonts so it looks like this ~ Suitcase MenuFonts should resolve that conflict.
Lance :D
Matt,
Unless Photoshop has changed in the last year or so, (I haven't upgraded lately,) Adobe recommends keeping virtual memory OFF while you are running Photoshop. I believe there is a conflict between the memory management schemes of Apple and Adobe.
Lance
:D