Great suggestion! I am almost kicking myself for not trying that. I created a new user, enabled user switching, and the program runs from the alternate user. So I copied the prefs (4 files) from ~/Library/Preference/com.Apple.ichat.* to my main user. I thought this would do it, but... Still the program does not launch and generates the same error message logs: >From console.log: ## Component Manager: attempting to find symbols in a component alias of type (regR/carP/x!bt) dyld: /Applications/MyMacUtils/IM/iChat.app/Contents/MacOS/iChat Undefined symbols: /Applications/MyMacUtils/IM/iChat.app/Contents/MacOS/iChat undefined reference to _kNotificationAddedPerson expected to be defined in InstantMessage Aug 4 15:42:14 Steve17 crashdump: Unable to determine CPSProcessSerNum pid: 17330 name: iChat Aug 4 15:42:14 Steve17 crashdump: Started writing crash report to: /Users/steve/Library/Logs/CrashReporter/iChat.crash.log Aug 4 15:42:15 Steve17 crashdump: Finished writing crash report to: /Users/steve/Library/Logs/CrashReporter/iChat.crash.log ## Component Manager: attempting to find symbols in a component alias of type (regR/carP/x!bt) >From iChat.log: Host Name: Steve17.local Date/Time: 2004-08-04 15:42:14 -0700 OS Version: 10.3.4 (Build 7H63) Report Version: 2 Command: iChat Path: /Applications/MyMacUtils/IM/iChat.app/Contents/MacOS/iChat Version: ??? (???) PID: 17330 Thread: Unknown Link (dyld) error: dyld: /Applications/MyMacUtils/IM/iChat.app/Contents/MacOS/iChat Undefined symbols: /Applications/MyMacUtils/IM/iChat.app/Contents/MacOS/iChat undefined reference to _kNotificationAddedPerson expected to be defined in InstantMessage > From: W Lane <wilann at telusplanet.net> > Subject: Re: [X-Apps] Ichat no longer launches > Date: Tue, 3 Aug 2004 22:19:26 -0600 > > I would log in as a different user, see if iChat works there. If it > does, then the problem is with your account and likely a preference > file, look in User folder>Library>Preferences and then look for > com.apple.iChat.AIM.plist and/or com.apple.iChat.plist. Move both out > of the Preferences folder and try starting iChat. If it does start, you > will likely have to reset some of your settings.