need some help about foobar passthrough

i can't hear any sound from the itunes after enable foobar passthrough

i can hear songs after disable the foobar passthrough.

the maximum sound of foobar plugin is set to be 100%

the version i'm using:

- foobar 0.9.4.1

- itunes 7.0.2

- multiplugin 2.5.1

one more question:

i minimize my itunes to system tray, i dun see any drop of my memory usage after enable memory saving options? it's still around 100mb. is that normal?

thanks :]

#454631