Apple has released an 876KB firmware update for the keyboards of its MacBook and MacBook Pro laptops. MacBook, MacBook Pro Keyboard Firmware Update 1.0 fixes a bug where the laptop may ignore your first key press if the machine has been sitting idle. Release notes for the firmware update say it addresses other, unspecified issues and list the MacBook and MacBook Pro models supported by the update.
The firmware update, downloadable from Apple’s web site, requires OS X 10.5.2 or later.
Once you’ve downloaded it, please report back on our forums (link below) and let us know if it has, indeed, cleared up the bug for you.