Error dialog on login

I am getting a popup the first time I login after a reboot of XP Pro SP2:

"Windows cannot find '/idlist,:518:1864,'. Make sure you typed the name
correctly, and then try again. Tod search for a file, click the Start button,
and then click Search."

I notice that it takes nearly a minute to complete my first login. During
that time I get the welcome screen and the notice that my personal setting
are being loaded. Shortly after (10 sec) I initiate the login, I hear an
alert tone; I assume that is the popup described above.

Any help would be greatly appreciated!

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