Power lock problem(98 Lesabre)

My 98 LeSabre's driver side power lock quit working. the passenger side one is good. I want to fix it. But it seems need a special screw driver. Would anyone told me how to find such screw driver? Thank you!

Are you referring to a "Torx Driver", like the ones shown in the pic below? If so, you can buy a set just about anywhere that tools are sold.
http://img254.imageshack.us/img254/6918/troxdriverax6.jpg

Yes, that's what I want. Thank you!