Apple MacBook Pro hard drives keep stalling temporarily, according to customer complaints on Apple's own support forums.
Apple has said it is currently trying to fix the problem - that affects notebooks with 7,200rpm 500GB hard drives - with a software update.
Customers have complained that their notebook beeps, the hard drive clicks and then their computer stalls for about 10 seconds before going back to normal.
Customers have said the stalling is random and is not because of third party devices or peripherals being attached. Some have said their computers stall about 15 times a day.
One Apple Support Forum, called Hardrive click + beep, now has more than 88 pages with about 1,300 complaints.
A video of computer stalling, along with the clicks and beeps, has been posted to YouTube.
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