I have been using Zonealarm Pro for a couple of years. Over the past 5 months I have had a major problem with syncing my iphone due to a problem with AVG antivirus and Zonealarm. I switched to AVAST and corrected all but one problem with syncing.
After searching the zonealarm's forums, I found that there was a problem with the 0.14 engine and itunes. The update to the engine was released some time in Sept. I never received notification of the update and when I manually checked for an update in zonealarm program it reported that I was up to date. I went to zonealarm downloads, located the updated engine and manually updated zonealarm pro. All my problems with syncing my phone resolved.
Not sure if it was a problem with my installation of zonealarm or are engine updates not detected in the automatic updates. Are only definitions updated????
Thank you for your help.
I will periodically check zonealarm release notes to be sure my engine is current.