avast + Zonealarm Pro

Hi just purchased Avast! & was considering matching it with ZA Pro. Is this compatable or is there a setting I need to know about, thanks

It is compatible, but you need to do some tweaks to the default settings and disable the transparent web shield scanning.

http://www.avast.com/eng/webshield_issues.html
If you are using ZoneAlarm Pro and Privacy Control in ZoneAlarm is set to High and if you click YES in avast compatibility dialogue
box the transparent mode proxy in web shield will be turned off you have to manually configure browser to access internet. To manually configure your browser watch instructional video

For IE - broadband users: - Tutorial - Web Shield Proxy Set-up for IE
For IE - dialup users - Tutorial - Web Shield Proxy Set-up for IE (Dial-up)
For Firefox users - Tutorial - Web Shield Proxy Set-up for Firefox