I use SpywareBlaster 3.3 and regularly perform manual updates. For reasons I cannot fathom, SB's protection for "Huntbar Variant" gets turned off. I re-enable protection and go on about my business but invariably, hours or days later, the protection is again turned off. I use other anti-spyware software and those programs do not indicate that Huntbar is present on my machine. Any clues as to why SB's protection for this particular pest will not stay on?