I've been using SuperAntiSpyware Professional for a few months now. A friend of mine bought me the latest version of Spy Sweeper and I've installed it. Now, I run SAS only on demand. Two observations: 1. I could be wrong, but I think that Spy Sweeper catches more cookies than does SAS (but even if this is correct I don't know how important it is). 2. When I run Spy Sweeper and I move the mouse such that the screen saver goes off I notice that the entire Spy Sweeper image goes black for a few seconds (and then it returns to normal) I also use Registry Mechanic to occasionally scan the registry. Every time I run it it indicates some 110 errors for Spy Sweeper. I don't know if this is serious or not. In any case, I'm thinking of removing Spy Sweeper from my pc. Any comments will be appreciated. Thanks.