xp_logininfo Installation problem

Hello gurus,

I'm facing the same problem as described in this link:

xp_logininfo "Installation problem on windows 2003 with Sql 2005"

the error I get is similiar:

<i>The below message comes from executing the command master..xp_logininfo '<domain>\<user> ' Msg 15404, Level 16, State 11, Procedure xp_logininfo, Line 62 Could not obtain information about Windows NT group/user '<domain>\<user> ', error code 0x534. The statement has been terminated</i>

but I just don't get how to solve it.

-I've tried to use the profiler but didn't find any information that will help me to solve.

-One of the guys wrote to add "logon rights" to the user ... what does it mean ?

Please advice,

Dimitry Haritonov