Bridge can't find Startup Scripts on OSX (CS5, CS5.5, CS6)

Question

I just spent a few hours trying to figure out why Bridge could not be launched from Photoshop, and also why the Stratup Script panel in Bridge Preferences was empty.
On the chance someone else has this issue, I have found one cause for the problem on OSX... and I must say it is rather stupid.
If you have a volume named "Library" mounted, either a local volume or a server volume, Bridge expects to find its startup scripts on it. You can either rename the volume, or if that really isn't an option, you can create a folder path of /Application Support/Adobe on the Library volume and copy the /Library/Applications Support/Adobe/Bridge CS6 Extensions  and  /Library/Applications Support/Adobe/Startup Scripts 6.0 folders to that new folder.
Obviously renaming the volume is the easiest. Replace CS6 in the paths above with CS5 or CS5.1 if you also use those products.
If you have encountered this error in Photoshop when opening bridge, you may have a volume called "Library":
Error 2: photoshop is undefined.
Line: 1
-> photoshop.invokeBridge (false, false, '');

Answer 1

If you have a volume named "Library" mounted, either a local volume or a server volume, Bridge expects to find its startup scripts on it. You can either rename the volume, or if that really isn't an option, you can create a folder path of /Application Support/Adobe on the Library volume and copy the /Library/Applications Support/Adobe/Bridge CS6 Extensions  and  /Library/Applications Support/Adobe/Startup Scripts 6.0 folders to that new folder.
I'm sorry but I certainly can't second this advise, in fact I'm strongly against it. Mac Os uses 3 libraries, one at root level, one in the system folder on root level and one on user level, by default hidden per OSX 10.7.
That is for a single user set up.
Creating folders in those libraries yourself should only be done with great care and good knowledge but rather you should let this be done during default installation of the applications themselves, they have been designed to place the folders they need to use to work under the correct name and path, otherwise they won't recognize the needed files or script or preferences.
Renaming the library folder or creating a folder called library your self is a bad idea because all applications use the default root- and user library for various tasks as does the system itself.
If your initial installation ended up without having access to the other applications using the start up scripts inBridge the install either went wrong or your copy of the software is not correct.
The default location for the start up scripts should be in the library at root level and that would make the path: Macintosh HD (or the custom name you gave to the start up disk) / Library / Application support / Adobe / Startup Scripts CS6.
Inhere should each installed application of the CS6 suite have a folder with its application name. These folders contain the needed scripts. Some have only one and some have more. the particular script to run Photoshop is called "photoshop.jsx".