yeah, check the bulbs... the other thing to check is on the rear roof mounted lights, my switches were broken & i had to superglue the innards a little bit... if you take one out you'll see what i mean when i say that the plastic piece that holds the metal tabs that make contact w/ the bulb were broken... that's what i had to glue back together
just so you know, the window swithes aren't on the same lines as the rest of the interior lights... they're always on whenever the ignition is on