ASKER
Mac OS X is the desktop operating system from Apple Inc., found on Macintosh computers. OS X consists of a Mach/BSD-based kernel, operating system interfaces primarily based on FreeBSD and additional frameworks (written in C, C++ and Objective-C providing user interface and application-level services.
TRUSTED BY
a) has been deleted;
b) has been moved; or
c) is on a network volume or removabel volume that is not mounted.
Click the icon to highlight it and type "command-i" for "GetInfo" to find out where the alias is pointing to.
Alternatively, delete the alias and create a new one.