i have lost my mpu-401 device HELPPP!

hi, i'm french escuse and i don't speak english very well!
I try to find MPU-401 device setting on the web for reinstall but i have not found a site. where i cn download it?
thanks

Have a look here : There are many references
http://www.google.com/search?sourceid=navclient&q=MPU%2D401

Good Luck

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Willum

thanks