Hey all, just wondered if it is normal for network usage to spike every so often in activity monitor when I am not using anything on my mac, and don't have any apps open? For example, if I open up activity monitor, click on the network tab at the bottom, i'll get a little spike in data received every so often, maybe every 20-30 seconds, usually 50-200 bytes, nothing big... Occasionally there will be a little red spike for data sent mixed in there too, about the same size, every once in a while. Anybody else have this? Is this normal?