I have what is probably a very simple problem to fix, it's just that I haven't found the solution yet! I have 2 PC's networked and have ICS installed on XP Pro, which will access the internet with no problems. The client PC (XP home) has the broadband connection showing and can connect and disconnect the modem. Both computers can ping each other and can share files, folders etc. so the actual network is fine. The client PC can't ping or see any web pages though. I have looked through the forums here and have searched many other sites (including practicallynetworked, wown, microsoft, tweaktown, onecomputerguy etc...etc...) and have followed all instructions without joy. I'm thinking it's just a setting or configuration on the client PC somewhere but I've tried everything I can think of and have now run out of ideas. Does anyone please have any other suggestions?

Do you have the default gateway set on the client to host computers ip address?

Yes, everything's set up as per instructions found on the websites.