zonealarm "new network" bugging problem!

hi guys,

i hav windows mce sp2 wth zone alarm 6 isntalled. i see that zonealarm from yesterday started to bug. every now and then it shows "new network 192.168.1.0" detected. do u want to keep in internet or trusted zone. i hav not made any changes after i hav given the options and i dont even disconnect the conx. then in the morning when i see, it again shows the same screen.... and thro the night, no download took place. this begins to bug me. y is this happening?

/legolas