Some months ago I purchased Finale 2012. I also installed Garritan Personal Orchestra 4. Everything went OK.
I'm using an imac (i7, 8 Gb RAM) with MacOs Lion.
I've been working with Finale and GPO succesfully.
Today, I have purchased and downloaded Garritan Instant Orchestra, and the problems are here.
Although the software is registered, and I've got the activation card, there is no way to activate the program. It seems that Aria Player doesn't recognize the image when I drag it into the window.
Besides, as a standalone, I can use Aria Player, which is able to load any bank of instruments (Finale default bank, GPO4, and GIO).
However, Finale crashes when I try to open it.
The latest versions of Aria Player (1.128) and of Finale 2012 are running on the computer.