web browsers are not working

i have XP, and randomly a few days ago my computer stopped being able to
connect yo my browser. I say it that way b/c i play an online game, World of
Warcraft, and i can log on and play online via that no problem. i just cant
figure out why my browser doesnt work. I've used Mozilla almost exclusively
for about a year w/ no probs until now, but ie doesnt work either. I live w/
a few roommates, so we have cable internet w/ a wireless router, but im
connected via ethernet cord.

srry my info is muddled