i was using my iBook (800, 32vram, 128mb ram-long story, don't ask...i really want 640mb but i can't put in any RAM) with OS X 10.2.6 on it when i opened up iChat AV and realized that i couldn't do audio chats. So i wondered what the f*** was going on and took a peek in System Preferences and found out that the iBook thought that there was no sound input or output device. That's weird...because earlier today with the same computer i was chatting with someone using the built in mic and listening to Evanescence using the speakers. Can anyone help?