Power Seat Switch Issue on 03 Disco II
 

Last week I took in my Disco II into my mechanic with the driver seat switches not working. He did some test and told me I need to replace the seat switch board(for lack of other word...the box that are attached to the adjustment buttons). After he replaced it worked fine. Now today my wife went to adjust the seat, they stop working again. Anyone with this issue? I want to get an idea of what could be the issue before I take it back to mechanic.

Have all the seat functions failed or just one?
If it is the switch, again, Rover guarantees their parts for a year so don't buy another one, yet.