I just purchased a 2006 Honda Accord Coupe.. and tonight my passanger door wouldn't open from the inside.. I could only open it from the outside. I looked in my manual and didn't see anything about a child lock so I am wondering if I am overlooking something or if I need to take my car in to get this fixed... thanks.

Take it in. Probably a loose rod, but it's better to leave the problem to the dealer since it's stilll under warranty.