Hi! I've searched for this code before, but couldn't find any help. Recently my mac broke down - it started out with the mac not able to delete any files (error code -50 appears). Then I couldn't reboot - but I could run recovery mode - checked my hdd and everything - removed hdd formatted it, installed lion and it reoccured. Then I bought a new HDD - everything worked fine until now.. Same problem (error code -50), and I know what's going to happen next. Now I know it has nothing to do with the hard drive - but does any of you have an idea of how to resolve this?