I have 4 computers on a small LAN at home. All computers running
WinXP. ONE of the computers would not let any of the other computers
browse into the shared socuments folder - or let other computers share
it's printer!

This was a pain in the neck that plagued me for a LONG time. Yesterday
I found the problem! And I am posting it here in hopes that it might
help someone else!

The thing that did it for me

Start -> Run

GPEDIT.MSC

Go to:

Computer Configuration / Windows Settings / Security Settings / Local
Policies / User Rights Assignment

and check the following:

Access this Compputer from the Network


On the problem computer, the list was BLANK!

I added "Everyone" to the list - VOILA! Everthing working properly
now!

I hope this helps someone.