I had a problem playing YouTube videos. It would just sit there saying Loading.. The worst affected were those sent as links in emails. I trawled the web and these support pages and tried the options suggested but without success. I eventually solved it however, by deselecting all the parental control options in ZoneAlarm. You can then reselect them one at a time to see which are causing the problem. Hope this helps anybody else with the same problem.
Windows XP Home Edition
ZoneAlarm Internet Security Suite
Message Edited by drichy on 12-08-200612:13 AM