Hatchback not opening

I use the button on the drivers door to open the hatchback, and it makes the sound like it's opening, but when i go back to open it the rest of the way it doesn't open without the key...opens just fine with the key however. Anything i can do or check?

Lubricate the lock, a good place to start.

mine does that...
its either the actuator not pushin it up all the way or the shocks not helping it enough..
oh well