Owners of Apple’s new 27-inch Cinema Display have had problems with the hardware’s speakers, with sound that cuts out and issues with volume control, reports “AppleInsider” (http://www.appleinsider.com).

Some of the new Cinema Displays completely lose sound after a period of use, the article says Users said the only way to fix the problem is to unplug the display, and then plug it back in. Still, this doesn’t prevent the issue from returning.

There are also issues with the response time of volume control on the keyboard, says “AppleInsider.” Some Cinema Display usrs said they experienced delays of 6-7 seconds after pressing a key to change the volume.