Win2k and WinXP Power User inconsistency

Client Tested
WinXP Professional SP2 with Power Users Account
Win2K Professional SP4 with Power Users Account

Server Tested
Win2K PrintServer with 3 network printer

Enviroment:
All the computers and printers are within the same domain. The Power Users
access to the printers are full. There is no default printer on the clients.

Problem:
My problem lies withing setting lpt1 through net use in XP. I tried the
command "net use lpt1: \\printserver\printername" in 2000 professional, it
works fine. When I use it with the XP Pro client, the console asks for
login/password. I tried 3 different printers on lpt1 in XP Pro. It returns
the login/password result. When I tried the same command on lpt2/3 it works
fine. If I change the XP Pro account to administrator status it works fine.
Anyone encounter this problem before? How would you resolve this without
change to the level of user access? Thanks in advance.

Barry