Since upgrading my MBP to Snow Leopard over this weekend, I have lost some of my system sounds. Specifically, I don't have any sounds for sent mail or when you empty the trash. I've scoured over several forums where this problem is highlighted, but none of their fixes have worked for me. For instance: I've checked my 'Sound' preference pane to make sure sound effects are on; I've restarted my machine; I've checked the hidden preferences using Tinker Tool; and, repaired permissions through Disk Utility. Has anyone got any solutions to this problem? Is anyone else experienceing the same issue? Thanks in advance, Tim. I've tried all of the above again, still to no avail! Any help would be greatly appreciated.