Try deleting the sound preferences file. You'll find it at /Library/Preferences/com.apple.soundpref.plist. Once you've done that, make any adjustments you need to, and hopefully it'll work fine. John Pariseau <simplymail at ururk.com> writes: > After having plugged or unplugged a set of powered speakers into my > TiBook (550), the audio balance (L/R) often moves by itself. If it > moves just a little to the right, the left speaker is barely audible, > and the same if it moves to the left. I can easily fix this by moving > the slider to the middle. This means I have to open the pref pane > (option F3-5 on the TiBook keyboard). In fact, it may not be the > insertion or removal of the stereo mini jack. But it does change on > it's own, and I would like it to stop. > Kynan Shook kshook at mac.com http://homepage.mac.com/kshook/index.html