xabiton
I was using Avast until a few days ago but before that I had Kapursky didn't seem to make a difference I have had em all and they have all more or less given me problems. As far as Asio-latency I cannot open Sonar without getting a BSOD so sending screen shots would not work. Its currently not even installed because I got so frusterated. I think I may have bad ram though because when I get the BSOD its usually a Cache_manager warning but again this only happens in Sonar no issues running Live or Reason or Cubase LE.
Free anti-virus? meh! :-) there is some OK free anti-spyware.. ( spybot, adaware se, malwarebytes ) but free anti-virus has always given me a headache.
BSOD? Really, every time you open up Sonar? If that is really the case, than its got to be affecting your other software, whether or not you have seen the effect.
I'm not a computer pro by any stretch of the imagination, but I am totally curious now.. so.. um.. What's your computer make, and model, when did you buy it, and where? How much ram was in the machine when you bought it, and who installed the extra ram? What type of ram, and what brand? You are using windows 7 home premium, 64 bit? besides the ignition key, that is in the Reason balance what are your other dongles, and types of copy protect? what are your monitors? will reason balance work with Asio4All? When was the last time you did a system backup and restore? Have you thought about re-installing windows?
I have not had a BSOD on Windows 7. The last time I saw a BSOD on windows was in 2007, just before I switched to Mac, and had a pentium 4 that was several years old.. Since returning to Windows, and these new cheap modern multi-core machines... no BSOD's.. yet.. knock on wood...
cheers