This should be easy enough for you to do. First, slip the belt off the supercharger and spin the pulley. Take notice on if there is "play" (time between pulley spin and the resistance you feel once the rotors start to turn). If there is ANY, the coupler is shot. If you are mechanically inclined, this is an easy changeout but will cost between 100-150 dollars total to do the job right (you will need to take off the supercharger to change the coupler, and replace the gaskets).
If there is NO play, there could be other things too, such as the balancer (again, an easy fix if you are mech. inclined), rod bearing (not an easy fix...believe me, I know), or maybe a tensioner.f
EDIT: Whoa, a supercharged SE...that'* kinda rare
Welcome, downwardly mobile yuppies, to the dawn of the Age of Nefarious.
1993 SSEi - FrankenJinx - dead and gone.
1994 SSE (136K strong) - 180* t-stat,HD alternator, most unequipped SSE on the club, XM radio, Kenwood CD/MP3.
2006 Chevy Malibu Maxx LTZ - Custom 2.25" manifold-back exhaust w/FM-80. Probably the only Maxx with this system.