Translations by Mitsuya Shibata

Ignore quickly-repeated key presses of the same key.

Turn on bounce keys

Turn on <em>bounce keys</em> to ignore key presses that are rapidly repeated. For example, if you have hand tremors which cause you to press a key multiple times when you only want to press it once, you should turn on bounce keys.

Open <gui>Universal Access</gui> and select the <gui>Typing</gui> tab.

You can adjust the contrast of windows and buttons so that they're easier to see. This is not the same as <link xref="display-dimscreen">changing the brightness of the whole screen</link>; only parts of the <em>user interface</em> will change.

You can click or drag simply by hovering your mouse pointer over a control or object on the screen. This is useful if you find it difficult to move the mouse and click at the same time. This feature is called Hover Click or Dwell Click.

When Hover Click is enabled, you can move your mouse pointer over a control, let go of the mouse, and then wait for a while before the button will be clicked for you.

The guide is constantly being improved. Although we attempt to provide you with a comprehensive set of helpful information, we know we won't answer all of your questions here. We will keep adding more information to make things more helpful, though.

Click <gui>Apply</gui>, and then click <gui>Apply</gui> in the window that appears. The applications that you chose will be downloaded and installed.

Add other repositories to extend the software sources Ubuntu uses for installation and upgrades.

Software is available from third-party sources, as well as from the default Ubuntu software repositories. If you want to install software from a third-party software repository, you must add it to Ubuntu's list of available repositories.

Click on the <app>Ubuntu Software Center</app> icon in the Launcher, or search for Ubuntu Software Center in the search bar of the <app>Dash</app>.

Click <gui>Add</gui> and enter the APT line for the repository. This should be available from the website of the repository, and should look similar to:

The Canonical Partner repository offers some proprietary applications that don't cost any money to use but are closed source. They include software like <app>Skype</app>, <app>Adobe Reader</app> and <app>Adobe Flash Plugin</app>. Software in this repository will appear in Ubuntu Software Center search results but won't be installable until this repository is enabled.

To enable the repository, follow the steps above to open the <gui>Other Software</gui> tab in <app>Software Sources</app>. If you see the <gui>Canonical Partners</gui> repository in the list, make sure it is checked then close the Software Sources window. If you don't see it, click <gui>Add</gui> and enter:

Click <gui>Add Source</gui> then close the Software Sources window. Wait a moment for Ubuntu Software Center to download the repository information.

When you use the file manager to copy or move files, the computer checks to make sure that all of the data transferred correctly. However, if you are transferring data that is very important to you, you may want to perform additional checks to confirm that your data has been transferred properly.

You can do an extra check by looking through the copied files and folders on the destination media. By checking to make sure that the files and folders you transferred are actually there in the backup, you can have extra confidence that the process was successful.

If you find that you do regular backups of large amounts of data, you may find it easier to use a dedicated backup program, such as <app>Déjà Dup</app>. Such a program is more powerful and more reliable than just copying and pasting files.

How often you make backups will depend on the type of data to be backed up. For example, if you are running a network environment with critical data stored on your servers, then even nightly backups may not be enough.

As a general rule, the amount of time in between backups should be no more than the amount of time you are willing to spend re-doing any lost work. For example, if spending a week re-writing lost documents is too long for you, you should back up at least once per week.

Use Déjà Dup (or some other backup application) to make copies of your valuable files and settings to protect against loss.

Retrieve your files from a backup.

Personal files (documents, music, photos and videos)

These are usually stored in your home folder (<file>/home/your_name</file>). They could be in subfolders such as Desktop, Documents, Pictures, Music and Videos.

In general, you will want to back up files that are irreplaceable and files that require a great time investment to replace without a backup. If things are easy to replace, on the other hand, you may not want to use up disk space by having backups of them.

You should store backup copies of your files somewhere separate from your computer - on an external hard disk, for example. That way, if the computer breaks, the backup will still be intact. For maximum security, you shouldn't keep the backup in the same building as your computer. If there is a fire or theft, both copies of the data could be lost if they are kept together.

Online backup service (<link href="http://aws.amazon.com/s3/">Amazon S3</link> or <link href="https://one.ubuntu.com/">Ubuntu One</link>, for example; capacity depends on price)

Some of these options have sufficient capacity to allow for a backup of every file on your system, also known as a <em>complete system backup</em>.

Many computers do not have Bluetooth adapters. You can buy an adapter if you want to use Bluetooth.

Remove a device from the list of Bluetooth devices.

By clicking <gui>Add profile</gui> you can select an existing profile or import a new file.

Where do I get color profiles?

What is a color space?

Display your appointments on the calendar at the top of the screen.

Choose to show additional information such as the date or day of the week.

By default, Ubuntu only shows the time in the clock. You can set the clock to show additional information if you choose.

You can also change the clock's date format to match the preferred standard for your location.

In the Personal section, click <gui>Language Support</gui>.

Update the time/date displayed at the top of the screen.

If you want to know what time it is in different cities around the world, you can add additional timezones to the clock menu. These additional cities will show up below the calendar when you click on the clock.

Automatically lock your screen

When you attach a device to your computer, you must have the correct driver installed for that device to work. For example, if you plug in a printer but the correct driver isn't available, you won't be able to use the printer. Normally, each model of device uses a driver that is not compatible with any other model.

Most problems with proprietary drivers cannot be fixed by Ubuntu developers.

In the Hardware section, click <gui>Keyboard</gui>.

When you add multiple layouts, you can quickly switch between them using the keyboard layout icon in the menu bar. The menu will display a short identifier for the current layout, such as <gui>en</gui> for the standard English layout. Click the layout indicator and select the layout you want to use from the menu.

By default, new windows will use the default keyboard layout. You can instead choose to have them use the layout of the window you were last using. The default layout is the layout at the top of the list. Use the <gui>↑</gui> and <gui>↓</gui> buttons to move layouts up and down in the list.

You may want to add certain symbols to specific keys or adjust custom option and behaviors. You can do this by clicking <gui>Options</gui>.

Keyboard navigation