I have finally managed to find my proapps folder–thanks for the careful instructions about Terminal. My problem was that Final Cut Pro 7 was asking me for my serial number(s) every time I launch it–a new wrinkle, as I’ve had it on this same machine, running Lion, for a year or so, with no problem. So I was going to “delete any FCP system id’s ” in ProApps, as another thread advised, then reopen FCP and enter the sn’s…this, I read, would solve it. BUT there are no FCP system id’s in my ProApps folder (that must be why it keeps asking for sn). But I mean, I have repeatedly opened FCP, put in the sn’s, already–and they haven’t made a folder. So something else must be wrong or needed. Anyone have any ideas? I hate to have to reinstall the whole FCS, though I have the disks etc.–but isn’t there a simpler solution??