Air bag light, megane scenic.. :)?

hello all, i have a 1998 megane scenic, 2.0 monaco. The airbag light came on on the dashboard today on the way home, however it never has done before. i've noticed a few problems mentioned on here about wires under the seat? Today i adjusted the passenger seat for the first time since owning the car (to clean the carpets thoroughly ;-p ) and think i might have disturbed something? I'l have a proper look tomorrow in the day light, however i appreciate any advice.
Thanks for reading.
-keith