Please, tell us the exact data of all your stuff!
Which exact model of MacBook Pro (year, processor, model ID, Ram)?
Which model of MBox, series 2 or 3?
And which exact version of Pro Tools LE, 7 or 8 (the exact sub version, for example, 8.0.1, 8.0.3 or 8.0.5)?
Only if you give us the exact info we will be able to help you seriously!
At first view it seems that itīs all messed up a bit now. Neither the MBox 2 nor the MBox 3 will run on OSX
Yosemite 10.10.4 and much less will PTLE work with OSX Yosemite anymore unfortunately.
The last Mac OSX the latest version of Pro Tools LE (LE 8.0.5) was compatible with, was Snow Leopard OSX
10.6.8! LE definitely was not made to work with any later Mac OS.
So I think you need to "clean up" things a bit and find the fitting parts and fitting system for all your stuff.
If you want to keep your MBox and Pro Tools LE you will have to roll back your Mac OSX for sure.
On the other hand this could cause problems with Garageband as this one probably needs a more recent OS?
Check it out there.
MBox Mini 2
http://avid.force.com/pkb/articles/e...ers&popup=true
(latest OSX supported is Mavericks 10.9.4, Yosemite 10.10.x not supported)
MBox Mini 3
http://avid.force.com/pkb/articles/d...x-Mini-Drivers
(latest version of OSX supported is Yosemite 10.10.3, 10.10.4 is not supported anymore)
Pro Tools LE8
http://avid.force.com/pkb/articles/e...oad%2Fen393667
(you may scroll down a bit to "Pro Tools LE for Mac OS X Compatibility & Upgrade Information" and see that
Snow Leopard 10.6.8 was the last ever supported OSX for PTLE)
If you want to keep the more recent stuff, you could upgrade your Pro Tools and get a new, more recent
audio interface for example. Both will then work with Mac OSX Yosemite 10.10.4/5, so will do Garageband.
The best of success to you.