I've got a Dual-Processor 867 running 10.2.6 with 768MB of Ram and I'm trying to use an Imic. I used it fine for about 4 days but when I started up today, it's no longer showing up in my Sound Prefs Pane. I've reinstalled OS X, tried all USB ports but nothing happens. Also, it no longer shows up in the System Profiler, However, it shows up fine on other USB machines. Any ideas?