I'm also having a problem with ZA at Amazon, but specifically with their mp3 downloads.
When initiating the download of the mp3's to the Amazon download utility, I get a message that says ZA has encountered a stability problem and that I have already sent the info to ZA (which I did the first time this happened). The IE shutsdown and auto restarts.
I have done the ZA reset (which fixed the auto updates which were not happening), but didn't fix this problem. The problem did not occur with ZA 8.x, but started with the upgrade to 9.
Using IE 6.0 on XP, and following is my ZA info (latest version):
ZoneAlarm Security Suite version:9.1.008.000
Anti-virus engine version:188.8.131.52
Anti-virus signature DAT file version:998065024