I have a shared hosting account on Hostmonster, on which I just installed the Joomla CMS. I also added a plugin which I just found out requires MySQLi driver to function properly.
So I did some googling which advided me to change a few minimum required settings in PHP.ini and also added the mysqli extention with
extension=php_mysqli.dll
but when I change the database setting in Joomla to MySQLi the Save button doesn't respond.
I have checked all minimum requirements and am very sure I meet all of them.
I just had a look at the hostmonster website and it looks like they only offer linux hosting. If this is the case then your extension line should be
The '.dll' extension only applies to Windows.