I’m installing a new fileserver at home (more on this one of these days…) and after installing the netatalk package I wasn’t able to connect to it from MacOS X Leopard, it returned an error after the user/pass prompt.

Googling about it I’ve found that you need to recompile the netatalk package, more info on this and a detailed step-by-step here: Make Netatalk talk to Leopard (Mac OS X 10.5)