SuiteCRM import and export base

The installation goes properly. SuiteCRM works great. My problem is the import and export base. When I try to do the import database to another server or same occurs this error: # 1062 - Duplicate entry for key ‘PRIMARY’

Export database with phpmyadmin ver 4.0.4 does not work well. PhpMyadmin ver 4.0.8 works ok.