like an idiot i didnt do an online backup of quicken, my email, photos in iphoto, etc. i assumed from reading the guide that if i did the tiger update it would just update the os. maybe that was what was supposed to happen, but i assure you it didnt. i lost all quicken data, hundreds of photos in iphoto, weeks worth of email, etc. make sure you backup everything before upgrading tiger, or do a clean install which is probably better anyway.