Script won’t execute for User in W2K

I have a simple login script to map a network drive on the server, and it will only map the drive when a Domain Admin. logs in. The script will not execute when an ordinary Domain User logs in.
I’m using Active Directory, and it doesn’t matter if the scrip is placed in the “login script” area on the Profile tab, or if the script is in the default Domain Policy-User Config.-Scripts-logon.
It works fine if I give the user Admin. Priv’s.
I’ve checked everything I can think of but I’m runningout of wits.
Any help would be great.
Thanks