I recently allowed my system to update to 10.4.10, however I wouldn't if I had known about the weird audio issues. I do hear a quiet static like sound with headphones plugged into the jack, and I saw people talking about an audio update to fix it. I ran Software Update when I saw the first mention of the update and it said there were no updates available. I thought maybe it would take a couple days for it to come up so I tried again tonight and it didn't come up. I downloaded the fix from Apples website and tried to install it but it wouldn't let me, it basically said the update didn't apply to my drive. I know I have 10.4.10, so what's up? I saw something when searching for the audio update download that said that version 1.1 of 10.4.10 doesn't need the fix, but I couldn't see where to tell what my version is. I DO hear the static though, on my three week old 15" MBP, could it be that it's the computer and not the OS? Or maybe an update hasn't been made for my version yet? I only updated it a few nights ago, not more than three nights back.