Have you run into this loading problem when you start Octave in Cygwin recently? If yes, you are not alone.
[zandy@cygwin] ~ $ octave
/usr/bin/octave-cli-3.8.1.exe: error while loading shared libraries: ?: cannot open shared
object file: No such file or directory
Diagnose:
[zandy@cygwin] ~ $ cygcheck /usr/bin ...