Clear Font Caches & Font Databases in Mac OS X to Resolve Unusual Font Problems
In some unusual and admittedly rare situations, fonts in OS X and various Mac apps may display erroneously, or outright fail to display. Typically this happens after a font has been modified or a font has been installed outside of the standard ~/Library/Fonts directory, but it can happen out of the blue in some situations as well. While some font issues can be fixed by repairing permissions, more obscure issues may require you to dump the font caches and rebuild them.






If you’re a Mac user who finds the text output shown within Terminal app to be a bit too confined and tightly spaced, you’ll be pleased to discover that you can adjust the line spacing to accommodate your preferences. You can boost line spacing within Terminal dramatically or just a little bit (or if you really want to, shrink the line spacing too), and you may find that even a small increase to the line spacing can result in dramatically improved readability of text and command output within Terminal app.




Some Mac users running OS X Yosemite have discovered Bluetooth to become unreliable, either dropping device connections constantly or even simply not discovering a working Bluetooth device. For example, some users who are trying to
In some specific situations, Mac users running OS X Yosemite may wish to re-download the complete installer application of a prior operating system like OS X Mavericks. This is typically something only advanced users would want to do, perhaps for making a bootable installer for the older OS X version, for upgrading a different Mac, or even to downgrade (more on that in a moment), but unless you have a compelling reason to download the prior OS X release installer there is little other reason to do this. 


