i've been using my imac for a year now and i'm quite happy with it. i just couldn't find answers to the following questions, so i thought i'd give it a try here:
1. how can i make the built-in speakers work when at the same time external speakers are plugged in the headphones jack? i've got two speakers behind me and it'd just be great to build some sort of surround sound environment. are there any programs/system preference utilities for that?
2. is there an...