No Instrument Plug-ins (except Click II)

Hey Guys,
Im a new user to Pro Tools so please forgive my inexperience...
I have a Pro Tools 11.0.1 which is working great except for one thing:
when i try to insert an Instrument Plug-in, all i have to choose from is "Click II"

I was lead to believe that Pro Tools came with built in instruments to use with MIDI or Instrument tracks. am i mistaken?

Basically i created an Instrument Track so i can add some piano and strings to a song (write them in PT using my keyboard - dont have a MIDI hardware), but had no instrument to insert into it.

Thanks for the help.
J.