PHP Built On Windows NT CP5-14537 6.1 build 7600 (Windows Server 2008 R2 Standard Edition) i586
Thanks again!
I’ve looked in components and can’t an extension of that name
Version info below
Database Version 5.5.24
Database Collation utf8_general_ci
PHP Version 5.3.13
Web Server Microsoft-IIS/7.5
WebServer to PHP Interface cgi-fcgi
Joomla! Version Joomla! 2.5.6 Stable [ Ember ] 19-June-2012 14:00 GMT
Joomla! Platform Version Joomla Platform 11.4.0 Stable [ Brian Kernighan ] 03-Jan-2012 00:00 GMT
Hi,
What plugins do you have installed, then?
It would be a whole lot easier to debug this if we could disable the minification.
Hi Pullo,
I have found the plugin and disabled it 
Tested it in IE 7.0.5, and it seems to work now!
Disabling the plugin must of fixed it
Hi there mattastic,
Yup, I can confirm that the error has disappeared from FireFox, Chrome, Opera (all latest), as well as IE 7 - IE10.
If you look at the source code of the page (e.g. with Ctrl + U in Chrome or Firefox), you can see that all of the scripts are being included in the correct order.
Whatever that plugin was doing, it was lumping the JavaScript together like that which was causing the error.
That’s not to say that minifying or caching your site’s pages is a bad idea, quite the contrary.
There seem to be a number of other plugins that offer this service. Maybea different one works better for you:
https://www.google.co.uk/search?q=caching+plugin+joomla
https://www.google.co.uk/search?q=minify+joomla
Anyway, all’s well that ends well.
Can we consider this particular problem solved?