IFMEMBER not showing all groups - HELP!

I am having trouble using the IFMEMBER utility for Windows Servers.  What I am trying to do, for example, is use a line like this in my script:

:TrusteeUser
ifmember domain\groupname
if not errorlevel 1 goto nextTrusteeUser
net use t: \\server\trustee$
:nextTrusteeUser

For some reason, though, ifmember is not seeing all of the group associations.  If I run "ifmember.exe /l /v" it will show only some of the groups I am associated with.  If I add myself to the trustee group and run the command again, for example, the trustee group does not appear.  

WHAT AM I DOING WRONG?  I have tried using:

1.  ifmember "groupname"
2.  ifmember groupname
3.  ifmember "domain\groupname"  and
4.  ifmember domain\groupname

and it still does not see the domain group membership.  Additionally, I have tried creating both a Domain Local group for this, and a Global security group... neither works.  

Any help will be greatly appreciated.

Thanks!