Apple released MacBook/Pro Keyboard Firmware 1.0 to address an old issue where if the computer has been idle for a while, the first key press may be ignored. The update addresses other issues, as well.
The update is available as a standalone download. or via Software Update.
The update requires Mac OS X 10.5.2, and is for the following models:
- MacBook (Late 2006)
- MacBook (Mid 2007)
- MacBook (Late 2007)
- MacBook Pro (17-inch Core 2 Duo)
- MacBook Pro (15-inch Core 2 Duo)
- MacBook Pro (Mid 2007, 2.4/2.2GHz)
- MacBook Pro (Late 2007, 2.4/2.2GHz)
MacFixIt covered this issue extensively:
- MacBook, MacBook Pro update 1.1 doesn’t fix first-letter-missing syndrome
- MacBook, MacBook Pro update 1.1 effective for most users
- Sporadic missing letters while typing: Not just MacBook Pros; watch for trackpad interference
- MacBook Pros: First typed letter missing when typing in text fields; Apple acknowledges
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