Apple on Wednesday released a software update it said would fix a problem with its MacBook Pro line of portable computers that have the 7200rpm 500GB hard drive.
Users with the affected computers reported hearing beeps from the computer just before the hard drive would make clicking sounds and then freeze. The issue wouldn't require a restart or force quit-- simply waiting for 10 seconds or so would normally be enough for the computer to return to normal.
The hard drives in question shipped with the June 2009 MacBook Pro, according to Apple.
The software download from Apple's Web site is a firmware updater. After downloading, you will be presented with some onscreen instructions to fully complete the update.