I have two Dells. Vurtually the same software. This one I am on the internet a lot more than the other. When I run an Ewido scan it finds tracking cookies on the older Dell and none on this one. Both have NOD32, Online Armor,Ewido. The older one has SpyBot and WinPatrol. This one PG. I run OA,PG and NOD 32 real time on this and NOD, WP, OA and SpyBot on the older one. I don't understand why the tracking cookies get to the older comp. I use Fire Fox on both.