Do you have more then one cable? I have a friend that had the issue off and on, stubborn and would just complain about it and say he needs to order a clipord back as he thought he had worn out his female connector (only tossing in the complain part cause I know he reads the forum). In his case it was literally his cable after I picked him up a cable from an electronics junk depot and the issue was solved. On occasion there is also a little pin inside the female jack that has come a little loose and only requires it be bent just a hair back. If this is happening to two machines you may want to look for a cable locally if you can. It just needs to be 1/8th mono to 1/4 mono jack.