Was happy with 2009.
Installed 2010 and have had nothing but problems. I purchased a 2 year 3 system key about a month ago for 3 XP SP3 systems in home, but have not had any of the issues resolved. Have put in several hours trouble shooting, uninstalling and reinstalling but to no avail. Network does not work, BitDefender services are unavailable, have to restart my systems, etc.
Thank you for your time, but I need to move on.