I have read some X5 owners posts re: tailgate problems (specifically trunk won't open). But my problem is opposite, it won't stay open. It seems like a vacuum or something holding up the liftgate is not working as the gate won't hold open, so i need to hold the gate with my one hand while trying to put something in the trunk. Anyone has the same problemo? BTW, it happened suddenly, nothing that I know I did with the trunk or what. I wasn't able to use the SAV for a week when I went into vacation out of state.