One Computer won't Talk

This is my setup, i have a computer and a laptop, i have a cable internet connections which is shared throughout the house by being plugged into a D-Link DI-714P+, my main computer is plugged straight into that router and my laptop connects wirelessly through the router.

I can browse the internet on both computers no problems, i can get into the laptop from my main computer as well no problems, works all the time, however if i want to get into the main computer from the laptop, it wont let me in, it finds the computer in my network places, but when i double click on te computer name it brings up an error message saying the computer could not be found.

I am running win98 on both computer btw.

Anybody know how i can get into the main computer from my laptop?

-------------------------
Psyclone
www.lexicon.net/p5yc10n3
-------------------------