When there is a macro (stored on a network location) with changes open in the macro tool and I quit Fiji, it ask if I want to save changes. If I say Yes, the macro seems to be saved, but Fiji itself hangs. If the macro is stored on a local drive everything goes well.

It seems reproducable, I tried different files and different locations, but I can't completely exclude that there is another reason for the crash:

Start the macro editor (Plugins -> new -> Macro).
Open a macro that is stored on a network location.
Change something.
Close Fiji.
Click 'Yes' to save changes.
Fiji hangs.

Information about your version of Java:

  os.arch => amd64
  os.name => Windows 7
  os.version => 6.1
  java.version => 1.6.0_24
  java.vendor => Sun Microsystems Inc.
  java.runtime.name => Java(TM) SE Runtime Environment
  java.runtime.version => 1.6.0_24-b07
  java.vm.name => Java HotSpot(TM) 64-Bit Server VM
  java.vm.version => 19.1-b02
  java.vm.vendor => Sun Microsystems Inc.
  java.vm.info => mixed mode
  java.awt.graphicsenv => sun.awt.Win32GraphicsEnvironment
  java.specification.name => Java Platform API Specification
  java.specification.version => 1.6
  sun.cpu.endian => little
  sun.desktop => windows
  file.separator => \

The up-to-date check says: PROTECTED_LOCATION

Information relevant to JAVA_HOME related problems:

  JAVA_HOME is set to: C:\PROGRA~1\Fiji.app\Fiji.app/java/win64/jdk1.6.0_24//jre
  imagej.dir => C:\PROGRA~1\Fiji.app\Fiji.app

Information about the version of each plugin:

Activated update sites:
ImageJ: http://update.imagej.net/ (last check:20140725173557)
Fiji: http://fiji.sc/update/ (last check:20140724150838)
BigDataViewer: http://sites.imagej.net/Pietzsch/ (last check:20140619131159)
Bio-Formats: http://sites.imagej.net/Bio-Formats/ (last check:20140726032638)

Files not up-to-date:
  077159f3 (LOCAL_ONLY) 20131008134841 plugins/Image_Stabilizer.class
  0acd6f4f (LOCAL_ONLY) 20131008134849 plugins/Image_Stabilizer_Log_Applier.class
  f6bf2cd7 (LOCAL_ONLY) 20131008134950 plugins/PIV_.jar
  b2afde18 (LOCAL_ONLY) 20131008112635 plugins/cell_counter.jar