I don't know why but Spybot S&D no longer immunizes my computer system. I think it did before so I have no idea what's going on. I've used the stable release 1.4x+ and now I'm using the 2.0.6 Beta 4 version without any luck - no immunization!

My system is Windows 7 64bit Home Premium.

Perhaps someone could shed some light on this puzzle.

Servalan