Dragon Age 2 Digital download from Origin can get HD Texture pack to install

Purchased Dragon Age 2 in Origin a few days ago and downloaded the HD Texture pack for the game but it keeps saying need game installed. But the game is installed I actually started playing it. Thought it may have already been installed with Dragon Age 2 I tried selecting the HD Texture pack option but its greyed out.

How do I install the HD Texture pack?

My pc more than fits requirements.