I know that I'll need to update my system OS in order to install Finale 2011 (I'm still using 10.4). I went ahead and installed the Aria player and instrument samples, though, so that I could use the new sounds - in particular, the steel drums (since that is my instrument and I am an arranger for steel bands). My enthusiasm was dashed, however, as I discovered that not only do most of the steel drum samples not load, neither do select other samples that were in use (in the same working file!), such as the triangle in the Basic Orchestral Percussion set (and this isn't even using the Aria player set - it is from the previous version of Garritan Instruments for Finale. Other sound sets still load just fine; so far all I've noticed missing is the triangle and the steel drums, but I'm sure it has affected more. I should also point out that the steel drums don't load into the standalone version of Aria Player, either! What gives here? Any ideas?