GPO Drive mappings not working

I am trying to switch over from login script to GPO - Drive mappings using Item Level Targeting.  I created a global security group for each department. The created a global security group for each drive letter. I then created a GPO for each drive letter that will be mapped. I have tried switching between Create and Update. Doing gpupdate /force after all changes. That has not worked. In Item level targeting I added both Security groups.  For a full view of what I have done please read the attached HTM.  I exported the configuration. Our domain functional level is set to Windows Server 2003.

For the purposes of this request I am concentrating on one GPO.  The GPO is configured as follows:  

Action                        Update
Properties
Letter                                     R
Location                               \\stp60pfls001\outlook\
Reconnect                               Enabled
Label as                               \\stp60pfls001\outlook
Use first available                         Disabled
Hide/Show this drive                         Show
Hide/Show all drives                         Show

Common
Options
Stop processing items on this extension if       No
an error occurs on this item
Run in logged-on user's security            Yes
context (user policy option)
Remove this item when it is no longer applied       No
Apply once and do not reapply                   No
Item-level targeting: Security Group
Attribute                               Value
bool                                     AND
not                                     0
name                                     PSP\R - stp60pfls001_outlook_username
sid                                     S-1-5-21-342123414-1712461194-879972363-5699
userContext                               1
primaryGroup                               0
localGroup                               0
Item-level targeting: Security Group
Attribute                               Value
bool                                     OR
not                                     0
name                                     PSP\Networking
sid                                     S-1-5-21-342123414-1712461194-879972363-5733
userContext                               1
primaryGroup                               0
localGroup                               0

I don't understand why the drive I specified is not mapping.
Drive-Mappings.htm