We have been in our office space for under 1 year (it is a 2 year old building) and now we have 8 fluorescent lights that have stopped working. We tried replacing the bulbs but that did not work.

I think it is a ballast problem but am concerned that 8 lights would stop working so soon. All 8 are not on the same switch.

Any suggestions on why so many lights are not working? Thanks!