I can't quite believe that there isn't a solution to this available on the web - there seem a lot of people having the problem but no solutions I could find.
The site http://www.google.com/earth/explore/products/plugin.html says
"Good news - you already have the Google Earth Plug-in installed"
however in the box on the left-hand side it says
"There was a problem with the Google Earth Plugin"
and suggests restarting the browser and re-installing the plugin. I've tried both of these but am still getting this error.
I've tried this in both Safari 5.1.2 and Firefox 3.0.1 (yes I know this needs to be upgraded :) )
Any tips of where I should look in the logs to investigate the problem ?
Edit : @First - the entries from the Console are
30/12/2011 09:08:12 [0x0-0x151151].com.apple.Safari[4327] NP_Init called
30/12/2011 09:08:13 PluginProcess[4342] Earth plugin chosen models: cg:0 ca:1 ica:0 cocoa:1
30/12/2011 09:08:13 [0x0-0x151151].com.apple.Safari[4327] 2011-12-30 09:08:13.028 PluginProcess[4342:903] Earth plugin chosen models: cg:0 ca:1 ica:0 cocoa:1
30/12/2011 09:08:18 [0x0-0x151151].com.apple.Safari[4327] Intrinsic Alchemy v3.4 Beta-0930 (Static/Release)
30/12/2011 09:08:18 [0x0-0x151151].com.apple.Safari[4327] Built by keyhole-build on Fri Sep 30 00:00:00 2011
30/12/2011 09:08:21 [0x0-0x151151].com.apple.Safari[4327] Chrome IO thread reporting for duty.
30/12/2011 09:08:21 [0x0-0x151151].com.apple.Safari[4327] GENetworkAccessManager::GENetworkAccessManager()
30/12/2011 09:08:23 [0x0-0x151151].com.apple.Safari[4327] INFO: Using OpenGL Context.
30/12/2011 09:08:42 com.apple.launchd.peruser.501[125] Inspector: UNREGISTERING: bootstrap_register() unknown error code (1103)
Edit : Seems to be the same problem as https://groups.google.com/a/googleproductforums.com/forum/#!category-topic/earth/problems-and-errors/0zn5gShzFh8
