Thanks for the update information. Having updated this fine program, recommended by PCA, I noticed that "Double Click" was highlighted as a threat and deleted. Now, when I log on to PCA, I am assailed by warnings that "Double Click" is trying to download. Why does PCA use something that, on it's own recommendation, is detected as a threat.
Just set spybot to block silently and you wont see the warnings.Then there is no need to worry. I get the ad.click ones from here but i don't worry about them they never do any harm and get deleted almost as quick as they appear.