My 2008 Mini won't start because it thinks the driver door is open. This was an intermittent problem after the car had been sitting for a day or longer. Now it won't start at all. The dashboard messages are all there, but it won't turn over. This is my first entry and I am new to this database. Thanks to those who responded. It looks like it is the battery. I'll get a replacement tomorrow, and if the problem still persists, I'll update my post. Thanks again!!