hi Youngjun, > So, I install Version 0.17 on my OSX 10.7.4. > Graphic really works! > I am using JackOSX 0.88 jackosx has some problems on osx 10.7. even the current 0.89 version is affected, so 0.88 won't work for sure. they have released a beta version which probably works better. more info here: http://jackosx.com/download.html best, gabor