Ipod charging problem: on and off
                                                
                                                
                                                
                                                
                                            
                                                                                When I plug my ipod to charge it using the usb cable, it makes a sound that it is charging. After a minute, I hear the sound again, and it is not charging. After several minutes charging starts again. This cycle repeats at uneven intervals throughout the charging time. How can I get it to charge properly?
                                            
                                            
                                            
                                        
		
                                                            







