Hi all, I'm having trouble with three PCs (all XP Home SP2) on a home
network (two wireless laptops plus one desktop on a hardwired Ethernet
cable, all talking to Netgear WGR614 wireless router which in turn is
connected to cable modem box).

All computers are doing tcp/ip fine -- they see the outside Internet,
can browse the web, connect to mail servers, etc.  The problem is with
the home network and file-sharing.  Each of the PC's has shared
folders on it.  

This evening, all three computers are turned on and are successfully
accessing the Internet.  

-- From laptop #1, if I go to Start > Network Places > Entire Network

not see laptop #2.

If I then double-click on the icon for the desktop, I get an error
"\\desktop is not accessible.  You might not have permission to use
this network resource.  Contact the administrator of this server to
find out if you have access permissions.  The network path was not
found."

-- From the desktop PC, I can see both laptops #1 and #2 on the
network.  I can access the shared folder on laptop #2 and browse
files, etc.  However, if I try to double-click on laptop #1, I get the
same "You might not have permission" error from above.

-- From laptop #2, if I navigate through the networking menus (which
seem to be somewhat different between each of the three computers) to
Entire Network > Microsoft Networking and then double-click on Mshome,
I get an error "\\Mshome is not accessible.  You might not have
permission to use this network resource ..."  Ergo I can't get to a
place where I can see either of the two computers.

Obivously the home network is hosed-up in different ways on each of
these three PC's.  Any suggestions on where to start debugging? Thanks
in advance --