A launchd item that was working in 10.5 is no longer working after my upgrade to 10.6. I am running 10.6.2 and I have recreated the launchd item and given it a new name and that one doesn't run either.

I have found a link of people with the same problem on google groups but none of the advice in that link helps. My launchd item is not listed in /private/var/db/launchd.db/com.apple.launchd/overrides.plist or in any of the overrides.plist files in the subdirectories of /private/var/db/launchd.db/

I have also tried to set this up as both a user agent and a user daemon.

My launchd item simply runs a shell script, which I have no problem launching manually.

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>Label</key>
    <string>com.eric.tmnotify.launchd</string>
    <key>ProgramArguments</key>
    <array>
        <string>/<path_to>/tmnotify.sh</string>
    </array>
    <key>StartInterval</key>
    <integer>3600</integer>
</dict>
</plist>

I have tried to load it by overriding the disabled key (even though it is not disabled in any of the overrides.plist files) with both:

sudo launchctl load -F /Users/eric/Library/LaunchAgents/com.eric.tmnotify.launchd.plist
sudo launchctl load -w /Users/eric/Library/LaunchAgents/com.eric.tmnotify.launchd.plist

and after running either of them I can see that it is running by using sudo launchctl list but the shell script never fires.

Edit: I have also put this in the formerly blank file at /private/var/db/launchd.db/com.apple.launchd.peruser.501/overrides.plist :

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
        <key>com.eric.tmnotify.launchd</key>
        <dict>
                <key>Disabled</key>
                <false/>
        </dict>
</dict>
</plist>

I also tried inserting this alphabetically:

    <key>com.eric.tmnotify.launchd</key>
    <dict>
            <key>Disabled</key>
            <false/>
    </dict>

into the file /private/var/db/launchd.db/com.apple.launchd/overrides.plist but still no dice.