my first mac, yay! but so many things i'm not sure how to do... for example: when installing software, i dont like the default name it thinks i have. i dont recall EVER, on this machine, using the long form of my last name. i usually use the short form. but by default, when installing software or even in ichat, it uses my super long last name. grrrr. where to change my default display name? another default that is frustrating - i wish the mac would stop underlining things it thinks i've misspelled. i write in several languages, so i'm always getting that red underline thing, across multiple apps. is this a global preference? where to change? i don't want spellcheck e-v-e-r. thanks so much for your help, aya.