Brakes and rotors?

In the past year I have had my rotors replaced 3 times. They seem to work fine for the first 2-3 months after getting them replaced and then they become warped. I have not been stopping suddenly or riding the brake. I had the brakes replaced at 50,000 miles. Someone suggested that the car's ABS computer/metering system was not working properly, causing the rotors to become warped. Since the car was 2 years old the airbag light also comes on intermittently and the check engine light has come on but then gone off. I'm wondering if all of these problems are connected to the electrical system. Please advise. Thank you.