First, if it really is Zone Alarm causing problems, the easiest way to find out is to turn it off (right click tray icon, choose "Shut down Zone Alarm") rather than uninstall and see if the problems go away. If they don't (which they probably won't), then you'll know it's not ZA.
For the dropouts, first thing to check is his email program. If he's using Outlook Express, go to Tools>Options>Connection tab and make sure "Hang up after sending and receiving" is not checked.
For the attachments, in OE, go to Tools>Options>Security and make sure "Do not allow attachments to be saved or opened that could potentially be a virus."
For the dropouts, first thing to check is his email program. If he's using Outlook Express, go to Tools>Options>Connection tab and make sure "Hang up after sending and receiving" is not checked.
For the attachments, in OE, go to Tools>Options>Security and make sure "Do not allow attachments to be saved or opened that could potentially be a virus."