How does the DLC packs work if youve got both, how do u select what u want to play when u start the game up?

This forum topic is about GTA IV and appears in the GTA IV Portal.

So when i first downloaded Lost and the damed it said do u want to play it, what Happens when u load the game again (after turnign it off and that) and what happens if u have both DLC, does it still ask how?