The required PHP extension MySQLi could not be found. Please ask your host to install this extension.
So I looked through EasyApache in Cpanel's WHM and, sure enough, it's ticked. I installed a few other modules, rebuilt just to make sure. I'm running Centos64 on both my servers although this install is (a) on a vps, and (b) in a subdirectory, not that either should make any difference. I didn't see anything that indicated that mysqli was installed using phpinfo so I'm wondering what could be stopping me in my tracks. Anyone?