Ack! Help!

Okay this is my prob:

I have 2 computers on a network (both with win98) and im using the internet sharing thing. Everything has worked fine since october (when I installed it) but when I restarted my computer last night.. My file sharing was working fine and I could access the internet from my main comp (host) but the other computer on the network could not go on the internet anymore, although the file sharing thing is still working.

Any ideas on how I can get the other computer to have access to the internet again?

Thanks.

(god, my mom is going insane :mad: