Hi Bharat,
For the user property, check if the "User logon name"
and "User logon name (Pre_Windows2000)" both are same.
If it's same try following:
In AD users & Computers Right click on PDC ->Properties ->
Group Policy -> Default Domain -> Edit
Then Computer Configuration->Windows Settings->Security
Settings->Local Policies->Security Options:
Here find Micrsoft Network Client

igitially sign
coumminication Always - Set to Disabled.
Sharad
>-----Original Message-----
>We have just migrated PDC from win NT to win
2003.Existing
>users on win 2003 can logon from Xp-pro as well as from
>win 98.
>
>But when new user is created on win 2003 server,user
>cannot loging from win 98 pc were as same new user
account
>can login from XP-pro pc.
>
>when we try to logon with new user acoount through win 98
>pc, error message :"user not found" is coming,were as on
>XP-Pro pc we are able to logon with the same user account
>.
>