Windows 2008 VB logon script map drive by group membership

Hello,

I used a basic VB script I found on a microsoft site.  The home directory part is working but the group membership mappings are not working. If anyone can tell me what Im doing wrong id appreciate it.  Here is the script I used:


Const Finance_GROUP     = "cn=SG_Finance"
Const IT_GROUP          = "CN=SG_IT"

Set wshNetwork = CreateObject("WScript.Network")
wshNetwork.MapNetworkDrive "h:","\\njfile\us$\" & wshNetwork.UserName

Set adSysInfo = CreateObject("ADSystemInfo")
Set CurrentUser = GetObject("LDAP://" & ADSysInfo.UserName)
strGroups = LCase(Join(CurrentUser.MemberOf))

If InStr(strGroups, finance_GROUP) Then

    wshNetwork.MapNetworkDrive "J:","\\njfile\finance"

ElseIf InStr(strGroups, IT_GROUP) Then

    wshNetwork.MapNetworkDrive "J:","\\njfile\it$\"


End If