We have two ceiling light fixtures in the kitchen. We used to have the kind that the bulbs were closed into the fixture. The light bulbs burned out very frequently so I thought the closed fixture may be getting too hot and contributing to the early burnout. But the new fixtures are open to the air, with a glass square bowl underneath. The bulbs still burn out in about 6 weeks. Even compact flourecent bulbs. This doesn't happen elsewhere in the house. Any thoughts?