Problem with Win XP to access on network

Hello, Sir
We've got 3 PCs on our house network. There's a 98 machine with a shared cable internet connection that we can all access, a PC running WinME and then my PC running XP Pro.

The other 2 PCs can see each other fine in Network Neighborhood/My Network Places, and can share files and access stuff on each others machines. My machine can't see the others. I can ping them, but when i go to view workgroup computers in My Network Places, it shows just my PC. I can sometimes access their shared folders by typing \\ then their ip address, but this only sometimes works.

I can't get to their shared folders by typing \\ then their machine name. i can't ping their name either.

All machines are on the same workgroup. We are using static IP addresses, all with the same subnet mask. All similar (192.168.0.x) ip addresses.

Can anyone help me. I've tried everything i can think of.

Thanks
Yogesh Dubey