[eluser]Muser[/eluser]
I don't know if it is a bug or I have missed a step... but I've upgraded from 1.4.0 to 1.6.1 and when I've tried to load the page I have got this error:
Fatal error: Call to a member function load() on a non-object in C:\webs\xampp\htdocs\grera\application\libraries\datamapper.php on line 615