Windows 7: Harddisk is being ejected when I move my laptop

[NautilusIII]

Hi!

I own a ThinkPad W530. I have a second harddrive in my UltraBay slot.

When I move around my Laptop (quickly) my harddrive is being "disconnected/ejected".

I know that ThinkPads come with this Active Protection System, but I have already deactivated this one; so it must be something else that causes this.

Any idea?

Thank you so much.

[dr_st]

Loose or damaged connector.

[wkw]

Or possibly a damaged drive.