On Tuesday 21 March 2006 17:49, David J. Bakeman wrote: > Both ethereal and tcpdump show nothing when I think I'n doing > nothing even though the gnome system monitor displays >60% > usage(Both ethereal and tcpdump do show something when I'm > reading email, accessing the web, etc)? Who do I believe? If you're referring to the resource monitor percentage display, I'm guessing both. Gnome-system-monitor monitors much besides just the network traffic that tcpdump and ethereal monitor. Try running "top" at a command prompt to see which processes are taking up your processor time. Regards, Mike Klinke