If you own a 27-inch iMac that's afflicted by the cursed screen-flickering problem, Apple's 27-inch iMac Display Firmware Update 1.0 will come as very good news. The update claims to correct the iMac's firmware to ensure proper display performance, eliminating the widespread flickering issue marring the displays of many 27-inch iMacs (see "New iMac Screens Cracking and Flickering," 10 December 2009). Be sure to follow Apple's warning not to turn your computer off during installation. More information regarding installation is also available on Apple's Web site. The update is available via Software Update or the Apple Support Downloads page. (Free, 294 KB)
- LaunchBar 6.3
- Final Cut Pro X 10.2, Compressor 4.2, Motion 5.2
- OS X Yosemite 10.10.3 Supplemental Update 1.0
- DEVONagent Lite, Express, and Pro 3.9.1
- FileMaker Pro 13.0.9
- iTunes 12.1.2
- GraphicConverter 9.6.1
- 1Password 5.3
- Security Update 2015-004 (Mountain Lion, Mavericks)
- Safari 8.0.5, 7.1.5, and 6.2.5
Go Back and Forth Fast in Preview
If you're reading a PDF in Apple's Preview software, and you follow a bookmark or an internal link to move around within the PDF, you can quickly return to where you were by pressing the keyboard shortcut Command-[ (that's Command-Left Bracket). Or, you can choose Go > Back.
The command works iteratively, so you can go back to just the previously viewed page or if you issue the command again, to the page before that, and so on. There's also an equivalent Go > Forward (Command-]).