sounds like computer browsing issue. make sure all computer have been enabled netbios over tcp/ip. also make sure the computer browser is running on the problem computer.

Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net 
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com 
 dear friends!

 I am facing a small problem in my small home network

 There are 5 computers in my network, three machines are pentium III- 2
 Windows 98 machines and one is NT 4.0 server and the other two are Pentium4
 machines having Windows XP.
 one HP laserjet 1100 printer is installed and shared in one of the 98
 machine and we can print in this printer from all the computers except one XP
 machine. In those particular machines ie. Printer server and this Client(XP
 machine) i can ping and get all the packets from each node but when i wanna
 browse the computer from 'my computer' , 'network palace' , or even from run
 command line the computers do not show each other, ya sometimes they display
 in one another but very slowly. and one thing- the client XP computer is a
 ICS machine too but, due to a network software i've changed the ICS machines'
 IP to 192.168.0.71 and there is no problem in internet sharing.
 Now i want to use the resourses of those computers in one-another- specially
 the PRINTER. please suggest me as soon as possible.
 thank you