Grid component not working after installation

Hi-

I just installed the Grid component and here are the messages I get when I try to create a new Grid:

Notice: Undefined offset: 1 in /var/www/joomla/simbatel/administrator/components/com_grid/models/grid.php on line 372 Notice: Undefined property: stdClass::$default_order in /var/www/joomla/simbatel/administrator/components/com_grid/models/grid.php on line 390 Notice: Undefined offset: 1 in /var/www/joomla/simbatel/administrator/components/com_grid/models/grid.php on line 392 Notice: Undefined property: stdClass::$secOrder in /var/www/joomla/simbatel/administrator/components/com_grid/models/grid.php on line 395 Notice: Undefined offset: 2 in /var/www/joomla/simbatel/administrator/components/com_grid/models/grid.php on line 396 Notice: Undefined offset: 1 in /var/www/joomla/simbatel/administrator/components/com_grid/models/grid.php on line 397 Notice: Undefined property: stdClass::$filter in /var/www/joomla/simbatel/administrator/components/com_grid/models/grid.php on line 401 Notice: Undefined offset: 1 in /var/www/joomla/simbatel/administrator/components/com_grid/models/grid.php on line 403 Notice: Undefined property: stdClass::$connection in /var/www/joomla/simbatel/administrator/components/com_grid/models/grid.php on line 122 Notice: Undefined variable: _DB in /var/www/joomla/simbatel/administrator/components/com_grid/models/grid.php on line 143 Notice: Undefined variable: _DB in /var/www/joomla/simbatel/administrator/components/com_grid/models/grid.php on line 147 Notice: Undefined variable: _DB in /var/www/joomla/simbatel/administrator/components/com_grid/models/grid.php on line 147 Notice: Undefined property: stdClass::$tableName in /var/www/joomla/simbatel/administrator/components/com_grid/models/grid.php on line 162 Notice: Undefined property: stdClass::$connection in /var/www/joomla/simbatel/administrator/components/com_grid/models/grid.php on line 163 Notice: Undefined property: stdClass::$idGrid in /var/www/joomla/simbatel/administrator/components/com_grid/views/grid/view.html.php on line 33

If I ignore the messages and try to create a new grid I never get to see it after I save it.

How do I solve this problem? I am running Ubuntu with apache2.