system process traffic? [ at ] _ [ at ]

hi! =)

i thought something was odd when i saw that the traffic box shows (atm) 28% utorrent and 71% system (things runing now are utorrent, the fw and avast!) and the activity logs do show an incredible amount of transffered data. i halted the utorrent transfers and system seems to have stopped as well - is it some kind of total traffic sum ???

(edit: ahh seems like the Generic Routing Protocol used by system could be explained by my pptp connection with my isp but still makes me wonder as it appears as any other connection… @_@)

also would appreciate help setting up firefox app control rules… ^^*