Mine just started doing this. Its a nice hot day, no rain in sight. I just came back with groceries, unloaded, closed the glass, went in, came back out and it was open. Look for my keys, they are sitting on the bench, right side up. Close again, few minutes later, pops open again. Ugh... anyone do a "how-to" on this yet? If not, I guess I will have a go at it.