The latest GPO Studio updates are available.

Mac: http://www.garritan.com/JABB/GarritanStudio003.dmg.zip

PC: http://www.garritan.com/support/GarritanStudio0002.zip

There's a nice new interface and ability to run both JABB and GPO.
Right click on the player (or Ctl click on Mac) to select JABB or GPO.

Enjoy!

Gary Garritan