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You’ve run into a problem: the Mail icon bounces endlessly in the Dock (and the pointer may or may not change to a spinning beach ball), or it unexpectedly quits and presents you with a window indicating such. How can you solve this frustrating event? Perform the following steps—in order and one at a time—until [...]
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Two days ago, I posted an article that teaches you how to open a file that is unknown to use in Mac OS X. It describes how Mac OS X tries to figure out what kind of file you have, as well as how to use the Mac App Store to find applications that can [...]
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When you double click a file in Mac OS X, Finder tells you that there is no default application specified to open the file. When this happens, Finder does not open the file unless you tell it which application can read the file. How do you determine whether you have an application that can read [...]
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Your Mac has many secret abilities when you first turn your computer on, and you may have already discovered one or two of these, especially if you’ve ever had to troubleshoot startup problems. This article is a simple list of the startup commands I’ve used over the years. Hopefully it will serve as a quick [...]
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MTU stands for “Maximum Transmission Unit.” Whenever you transmit and receive data in Mac OS X, the data is broken up into smaller pieces (called packets) and then reassembled on the other end of the connection. Think of it like a jigsaw puzzle: You go to the store to find a puzzle, and they come [...]
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Apple’s Mail can import folders and messages from many other email applications. This is obviously useful if you are switching from another email program and have not stored your messages on the email server. The import service provides a unique troubleshooting tool, however, in that you can use it to re-import your existing mail folders. [...]
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You have just purchased new hardware to work with your Mac. It could be something as simple as a mouse or as complex as a FireWire, rack-mounted audio interface. The most popular additions, though, are printers (and all-in-one, multifunction devices), scanners, and input devices like mice, keyboards, and tablets. Some of these devices seem to [...]
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