The past couple days I've noticed something weird going on with my network connection. When I'm not even using the internet, sometimes I'll see large uploads and downloads in Activity Monitor, up to 1-2 MB/s, which is a lot for my internet connection. This will happen when I'm not loading any webpages or downloading or uploading anything that I know of. I had a P2P filesharing program recently, but I've since deleted it, and the mysterious bandwidth use persists. I also have Transmission, but it's never open when this happens. I'm using a wireless connection to a Time Capsule. I have Time Machine pointed at its disk, which has been acting up a little lately. The only other thing I can think of is that perhaps this has something to do with Time Machine doing something without telling me. I'm at a loss to explain it. I'm on a secure WPA-protected network. I've seen someone else's iTunes shared library on my protected network before, but considered it a glitch, until I got paranoid and changed the password, which solved that problem. I don't have any other ideas now. So, any ideas out there? Thanks!