XPS-435T, Vista 64, NET VIEW COMPUTERNAME problem

Is anyone on a network (LAN) on an XPS Studio 435T? If you open a COMMAND PROMPT and enter "NET VIEW" do you see your computer?

My computers name is "IRV-XPS435". I cannot see it in NET VIEW. The IP Address is 192.168.1.103. Here is a capture of some commands I issued :

//////////////////////////////////////////////

C:\Users\Irv>net view
Server Name            Remark

-------------------------------------------------------------------------------
\\LARAINE-HP           Laraine-HP      <=== Wife's machine
\\LINKSYSWRT350N       LinksysWRT350N <=== Router
The command completed successfully.  <=== NOTE: This machine is MISSING.


C:\Users\Irv>net view \\irv-xps435  <=== Same command using this machine's name
Shared resources at \\irv-xps435

Irv's XPS 435T

Share name                  Type   Used as  Comment

-------------------------------------------------------------------------------
C_XPS435                    Disk
Canon MP470 series Printer  Print           Canon MP470 series Printer
Games DL                    Disk
IRV435_C                    Disk            435T C: Drive
IRV435_K                    Disk            435 K: drive
K_Irv425                    Disk
L_XPS435                    Disk
Public                      Disk
Quicken PDF Printer         Print           Quicken PDF Printer
The command completed successfully.


C:\Users\Irv>net view \\192.168.1.103 <=== Same command using IP Address of this machine
Shared resources at \\192.168.1.103

Irv's XPS 435T

Share name                  Type   Used as  Comment

-------------------------------------------------------------------------------
C_XPS435                    Disk
Canon MP470 series Printer  Print           Canon MP470 series Printer
Games DL                    Disk
IRV435_C                    Disk            435T C: Drive
IRV435_K                    Disk            435 K: drive
K_Irv425                    Disk
L_XPS435                    Disk
Public                      Disk
Quicken PDF Printer         Print           Quicken PDF Printer
The command completed successfully.

////////////////////////////////////////////////////

If I go to the other machine (wife's) and issue "net view \\irv-xps435" a 53 error results, however "net view \\192.168.1.103" works.

In addition, one can NOT do a NET SHARE unless using the IP Address form, but even then, the share gets access denied on XP, on Vista gets a syntax error.

Anyone else see this?

Suggestions on how to fix?

Vista Home Prem. 64 bit SP2 installed.