Group Policy - Computer Startup Scripts - Add/Set Default printer

Question

Good Morning.
Let's say we have 2 offices, A and B, and only 1 user.  The user is using Roaming Profiles.  Each office has its own printer.
What I am trying to do, is make a Startup script that is specific to the COMPUTER being logged into so when any user logs into that computer, they get the printer in that office defined and set as default.
I am able to do this successfully with my script but ONLY if i have the script be on the USER side of GP (i.e. in the Logon script section)
That is great that that is working however, when my user goes to Office B, they still get mapped to Office A's printer if I use that method.
So I figured I could just modify my GP and run the same script from the STARTUP section of the computer, rather than the LOGON section of the user.  It does not work.
Here is my script:
Set WRFCUNetwork = CreateObject("Wscript.Network")
PrinterPath = "\\fileserver\MAINTELLER"
PrinterDriver = "PrinterDriver"
WRFCUNetwork.AddWindowsPrinterConnection PrinterPath, PrinterDriver
WRFCUNetwork.SetDefaultPrinter "\\fileserver\MAINTELLER"
This is where I Have the script placed:
     Computer Configuration -> Windows Settings -> Scripts(Startup/Shutdown)
Once i'm in there, I double click Startup, click Add, and select my script which is named:
     MainPrinterSetup.vbs
I have this GP applied to ONE OU, and that OU has ONE computer in it (my test computer)
I login with a brand new user called "testuser" (creative, huh?) and basically nothing happens
except they log in and have some Microsoft Document Image Writer printer set as default (which by the way sure does slow the PC down to the point of it almost being broke if anyone actually tries to print to that by accident)
No Main Teller Printer, no anything.
The strangest part about this is, if i apply this script to the user LOGON scripts, it works fine, the printer is there, and is set as default. (but see above why that wont work for my situation)
So obviously the script works fine, but I guess i'm missing something when it comes to applying GP's to Computers rather than Users.
Can anyone shed some light as to why the script is not running (i'm guessing the script isn't even attempting to run, rather than failing, but i have no way to know that)
Thank you in advance!!
Derek Conlon
Network Administrator
WRFCU
EDIT:  Here are the PC's info that i'm working on:
     Server:  Windows Server 2003 Standard Edition (where my GP's are created and managed with AD)
     Target PC:  Windows XP Professional SP3
EDIT #2:  I manually navigated to the Script file after logging in and "opened" it and it added and set the default printer no problem.  the issue is definately with the script running at startup.

Answer 1

I wanted to clarify a few things:
1. While it is true that printer connections are usually per user, it is definitely possible to create "global printers".  There are a number of ways to do this, but two methods that come to mind are using:
a. "Rundll32 printui.dll,PrintUIEntry" option with the "/ga" switch.  The "/ga" switch is the key here since it allows you to deploy printers "per machine" instead of "per user".  More information
about this is available at:
http://members.shaw.ca/bsanders/NetPrinterAllUsers.htm
http://technet.microsoft.com/en-us/library/ee624057%28WS.10%29.aspx
http://www.computerperformance.co.uk/Logon/logon_printer_computer.htm
http://www.robvanderwoude.com/2kprintcontrol.php
b. The Print Management console that is available in Windows 2003 R2 and higher can help you deploy printers "per machine" in addition to "per user".  More information about this is available at:
http://www.czsolution.com/print-management/print-management/print-management-console.htm#DeployingPrintersByGroupPolicy
http://technet.microsoft.com/en-us/library/cc753109%28WS.10%29.aspx
2. As Guy mentioned, Group Policy Preferences can help set the default printer.  But there is another way to accomplish this.  The problem with the computer startup portion is that it runs before the user logs in.  And applying this script
in the login script section would not work per computer unless you used loopback processing.  So another way to do this is to place a script that sets the default printer into the "All Users" startup folder.  Items in the "All Users"
startup folder run for any user that logs into the computer, but it runs in the user's context.  So, this script would effectively set the default printer on a "per machine" basis.  The script method is a cruder way to approach the problem,
but it will help get the job done.  Here are some resources on setting the default printer via script:
http://www.intelliadmin.com/index.php/2007/08/set-default-printer-from-a-script
http://www.computerperformance.co.uk/ezine/ezine17.htm