I´ve already changed my antivirus. I still read this forum, but like 10 days ago my computer got infected, and before of that I asked about making better the avast detection and many forum members replied that my post was like idiot cause´ avast was good enough, that asking for heuristics or for getting better the detection rate was a nonsense, etc etc.
I liked comodo, but I think it still needs more time to get better. I´m using bitdefender now.