here i'll agree with you because i haven't taken a look at the newer one, but from the older one, yes, that was a mess...I've installed norton 2011 on a wide variety of systems, and haven't experienced any more problems caused by it than any other security software. The whole point of good security software is to keep an eye on things while they are running. Norton is not the only program to do this, and yes, of course it does take up a bit of processor time and memory. But in my experience, it is very transparent - even on slightly older hardware. If your last experience with Norton was its 2006-era products, I suggest you take another look at them.