Repair the disk by booting the from the Recovery HD. Immediately after the chime hold down the Command and R keys until the Utility Menu appears. Choose Disk Utility and click on the Continue button. Select the indented usually, Macintosh HD volumeentry from the side list.
Click on the First Aid button in the toolbar. Wait for the Done button to appear. Quit Disk Utility and returnto the Utility Menu. Restart the computer from the Apple Menu. Click on the lock icon and enter your Admin password when prompted. Setup a new Admin user account. Upon completion log out of your current account then log into the new account. If your problems cease, then consider switching to the new account and transferring your files to it - Transferring files from one User Account to another.
Immediately after the chime hold down the Command and R keys until the Apple logo appears. When Disk Utility loads select the drive out-dented entry from the Device list. The upper surface of the Performance mouse is covered in a hard gray plastic while the right side has a smooth rubber coating. The left side of the mouse features a black textured rubber surface that is surrounded by a silver accent piece.
Those familiar with the MX Revolution will be happy to know that the hyper-fast scroll wheel feature has returned, but operates a bit differently.
With this feature users can disengage the traditional clicking scroll wheel mechanism and allow the wheel to scroll unrestricted, which is useful for scrolling through long documents or files at 'hyper' speed. On the Revolution, hyper-fast scrolling could be activated by simply flicking the scroll wheel.
The mouse would disengage the wheel allowing free spin. Once it slowed down, it would reengage and operate like a traditional wheel. The Performance Mouse MX gets rid of this automatic feature and instead requires users to manually enable or disable hyper-fast scrolling by pressing the button behind the scroll wheel -- which is a step backwards in terms of usability.
That said, Logitech takes it one step further by enabling you to use the mouse on a clear glass surface, which was quite impressive. The battery system on the Performance MX one-ups that of the old Revolution too. Logitech suggests an mAh minimum replacement.
Charging the Performance MX is also much more convenient than with the old model. Instead of having to mount the mouse in a dock, now you can simply plug a USB cable into the front of the mouse and continue using it, much like the Razer Mamba and Microsoft Sidewinder X8.
Optionally, you can charge the mouse while away from your computer by using the included power adapter. This tiny receiver can be paired with up to six compatible Logitech mice and keyboards at the same time. While not many of you are going to use six devices at once, I can see notebook users carrying maybe three or so.
For example, you could have one small notebook mouse for mobile use, and a regular size keyboard and mouse combo for home use. The tiny receiver was designed for notebook users to install and forget.
Since it's so small, you don't have to bother unplugging it each time you transport your computer. The SetPoint software has a clean look and is very well laid out. You can remap each button except the hyper-scroll button to any of several presets or enter in your own keystroke. Other customizable options include pointer settings, battery information, game detection settings and software version data. You can set custom DPI levels in the key remapping section.
As for general use and mild gaming, the Performance MX certainly gets the job done.
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