kixtart woes

I’m trying to run a script to map a drive on my Win2000 PDC. My path is: //server1/username (username is a share).
My current line is:
USE N: \\SERVER1\%USERID%
My Kixtart script runs and doesn’t report errors. I even have another line:
USE N: //SERVER1/PUBLIC and it works OK.

I know my permissions are OK as I can manually map to my user folder.

My work stations are all Win98Se.

What’s wrong???