You should check the AD and be sure that groups you are a member off. A Domain name is not a group.

try this code and see which groups the user is added to
Code:

$strUserName = "testuser"
$strUserPath = "WinNT://@LDOMAIN/$strUserName,User"
$adsUser = GetObject($strUserPath)
For Each $adsGroup In $adsUser.Groups
 ? $adsGroup.Name
Next

replace "testuser" with the username of the user your trying to get info off.