I'm getting separate path and file name strings from an ASL requester. If I Open() a file from the current directory, a file handle is returned and the rest of my program performs as expected.

But, if the chosen file is somewhere other than the current directory, first I get a Lock() from the path name and then feed that lock into CurrentDir() - both of which appear to work, then the subsequent call to Open() hangs...

What am I missing?