Trunk hatch problem

[Eurocarnuts]

Hello all. I have a very strange thing happening to my 2002 X5, I cannot open the hatch using the outside button, I can use the inside button and it works. Now the strange thing is : Every time I shut the car off and take out (taking out the key) the key the hatch opens. This happened only if the car is running or the key is in the on position . It will not happen if I just put the key in. Any Ideas. Im planning a trip from Pennsylvania to Florida in a few days and I know this is going to be a chore every time I stop.

Im stumped.