I'm extremely angry!!!

I installed Windows XP Professional in both computers, and I've connected them through a network, but it's not working!!!

Ping is working perfectly, this means that both network adapters, the network cables and the Hub are working properly

but when I use Network Neighborhood (I don't know the XP name for this in English), it says that I don't have access to the workgroup!!!

I've tried the problem solver that comes with Windows, but it still doesn't work!!!

does someone has a small network with XP Pro that works??, and if so, please, I beg you to help me..

oh, and most games work perfectly in here, but I can't share files, which is even more important!!!

Oskilian