This vista antivirus keeps popping up on my screen and wants me to activate it.What does this mean? Is this vista antivirus 2008 security center ligit or BS?

Question...why would all of a sudden my free edition AVG 7.5 go from under one hour run time to a solid two? I haven't installed any new programs etc. BTW it never finds anything, that's a good thing. > very selective porn surfing :D

Can anyone recommend a good antivirus for a Mac running 10.4.11 I guess someone either hacked me or send me a virus. Damn porn sites. :)hammers