I love my Keurig coffee maker, but have had continual problems with it. I must admit their customer service has been exceptional in resolving these issues. The latest issue had to do with not being able to close the lid, and when I did get it closed, coffee would pour out over the k-cup in addition to the normal route through the k-cup.
I really didn’t want to call Keurig customer support again, so I decided to take a closer look. It turns out there is a safety mechanism employed such that if the lid is opened too far or with too much force, there are plastic tabs on both sides of the k-cup holder that connect to the lid, and the become disengaged. The fix is simple, just push the tabs back into their slots and problem solved.