Inability to type specific characters in OS X
In rare occurrences, people have found that some keys or keystrokes on their systems do not seem to be working properly. This may happen in certain software situations, indicating a configuration error, but it also may happen because of hardware malfunctions. If you experience problems with a specific character not working on your Mac, try the following set of possible fixes.
Hardware vs. softwareIf you are experiencing input issues with your keyboard, the first thing you should do is determine whether the problem is hardware-based or software-based. To do this, the best tool to use is the keyboard viewer, which … Read more