Errors are:
The phpMyAdmin configuration storage is not completely configured, some extended features have been deactivated. To find out why click
I too had this same problem. clearing cookies and cache worked for me. try it
$cfg['Servers'][$i]['user'] = 'root'; //mysql username here
$cfg['Servers'][$i]['password'] = 'password'; //mysql password here
Try adding the above configuration lines after $cfg['Servers'][$i]['connect_type'] = 'tcp';
If these also doesn't work then try with a fresh configuration file, may be by copying config.sample.inc.php. Do ensure that it has the above mentioned configuration lines. Check that if it works fine and then start making changes to it step by step, if any changes are to be made..
Please note that the username and password you provide should be able to login you from mysql command prompt..