Hi dcqsydney,
We too, have several profiles (Mum, Dad, Alex, Max...)
What I did was too install MJ under each profile so that the user profile registry
entries are correctly set. Upon installing, I choosed to store the software in the same
directory (C:/ProgramFiles/JRiver...) These multiple installs clearly overwrite the files
in the JRiver directory and the Global entries in the registry but I did not worry about that.
In the end you have only one copy of the software.
The result is that every user can enjoy Mediajukebox. Beside that, I found an important benefit when using
multiple libraries :
The default library (stored in C:/Program Files/JRiver) is shared and visible in every profile
but if you create your own library, say in D:/Home/Dad/Music/Lib, it will be visible
only in your profile. That's cool.
We share the same software but we have both a default shared library (like the CD rack in the lounge)
and a private library (like the pile of hip-hop CDs in my son's bedrooom !).
That's how we use it and so far, it worked.
hope this helps.