Hiya, heres a noob question:

I have 2 pcs connected to each other, both using Windows XP.
Everything used to work until I formatted one of them.

Now, Im pretty sure the local area connection on the formatted computer isnt configured well - and all I get is a yellow warning "Limited or no connectivity".

Tried leaving it to Windows to decide on the IP address automatically, but it will just wait a minute or two before giving me that warning again.
I tried setting the IP up manually to what it used to be, no go.

So Im doing something wrong apparently, the question is what?
Thanks much.