If you attempt to download music from Music Notes using Firefox or Safari, you will see a pop up stating the site is having technical difficulties with these to internet explorer apps. I could not download my music order and followed all of the instructions for Mac users to resolve the problem, none of which worked. When I attempted to download the order, my printer display stated " In use" or "Off Line". I unplugged both the computer and printer, deleted the printer form my WiFi network, downloaded a new setup from HP and installed it. HP's downloaded setup app said it recognized my printer and was connected to my WiFi network, but could not enable it to print due to something in the printer's que blocking further printing. Prior to attempting to print this Music Notes order, the printer worked perfectly. It was only after this episode that it would no longer print anything, from Music Notes or any other document from any other source, unrelated to Music Notes. I now am replacing what was a 3-month old HP computer in perfect working order with a new HP computer due to this Music Notes "technical problem with Firefox and Safari"!
There response was, "... we can cancel your purchase." Great customer service. There is documented research in customer service stating, "If you make one customer happy, he/she may tell someone else about that experience. If you make one customer unhappy, they will tell 15 other potential customers about their dissatisfaction." One can only hope.