Issues with the MB-D80 battery grip for Nikon D90

I have the battery grip called MB-D80 for my Nikon D90, but I have been having some problems with it. When I plug the battery grip in the camera and insert a battery, the camera dies from time to time, and the camera reports bogus battery charge information.

It seems that the batteries in the grip are not inserted all the way, so adding a piece of cardboard or other type of paper behind the hatch made all the difference! Now it works perfectly and the battery charge information is correctly displayed all the time.