unable to bootstrap

Hi.

This is what happens with up/en/cron with drush at the top of any drupal install I have on the computer:

drush dis module_builder
Command pm-disable needs a higher bootstrap level to run - you will need invoke drush from a more functional Drupal environment to run this command.                 [error]
The drush command 'dis module_builder' could not be executed.                                                                                                        [error]
Drush was not able to start (bootstrap) the Drupal database.                                                                                                         [error]
Hint: This error often occurs when Drush is trying to bootstrap a site that has not been installed or does not have a configured database.

Drush was attempting to connect to : 
  Drupal version    : 7.14
  Site URI          : http://default
  Database driver   : mysql
  Database hostname : localhost
  Database username : root
  Database name     : multisite_sandbox
  Default theme     : garland
  Administration theme: garland
  PHP configuration : 
  Drush version     : 5.3
  Drush configuration: 
  Drupal root       : /Applications/MAMP/htdocs/dev/sandbox/7
  Site path         : sites/default
  Modules path      : sites/all/modules
  Themes path       : sites/all/themes
  File directory path: sites/default/files
  %paths            : Array

You can select another site with a working database setup by specifying the URI to use with the --uri parameter on the command line or $options['uri'] in your
drushrc.php file.

I have created a symbolic link and added path to .bash_profile but it doesn't work in any of my drupal databases. Themes aren't even garland and I don't remember changing any setting on the OS.

Should you require, I'll be happy to assist you.