i've fallen and i cant say it right...

[im-such-a-slav.livejournal.com]

my dictionary gave two listings for the perfective form of падать: пасть and упасть. this is the first and only time it has done this, so is there a difference between the two? i asked a friend and she said пасть has a negative connotation, but i am still a bit confused. anyone have a better explanation?

also, i need to get a good font for my computer so i can read russian. does anyone know a good free one that i can download. i have windows XP, if that matters.