Cant open SEARCH – >Files and Folders

Unable to open START -> Search -> For Files and Folders.

Windows XP
Dell Optiplex GX 260 (P4, 512MB)

User tries to open it and nothing happens.

I have not tried anything yet as the user is a developer and has many apps on his PC. I dont want to go replacing system files and have his apps crash out.

Anyone have suggestions?

Thanks!