Apple Macbook 13inch Users Guide

Appendix B   Safety, Use, and Care Information111
 
Change hand positions often to avoid fatigue. Some computer users might develop 
discomfort in their hands, wrists, or arms after intensive work without breaks. If you 
begin to develop chronic pain or discomfort in your hands, wrists, or arms, consult a 
qualified health specialist.
Chair
An adjustable chair that provides firm, comfortable support is best. Adjust the height 
of the chair so your thighs are horizontal and your feet are flat on the...

112 Appendix B   Safety, Use, and Care Information
 
External Mouse
If you use an external mouse, position the mouse at the same height as your keyboard 
and within a comfortable reach.
Built-in Display
Adjust the angle of the display to minimize glare and reflections from overhead lights 
and windows. Do not force the display if you meet resistance. The display is not meant 
to open past 130 degrees.
You can adjust the brightness of the screen when you take the computer from one 
work location to...

113
AppendixC
 
CConnecting to the Internet
You can use your computer to browse the World 
Wide Web, send email to friends and family, and 
chat in real time over the Internet. Use this 
information to help you connect to the Internet.
When you first start up Mac OS X, Setup Assistant helps you enter your Internet 
configuration information. If you didn’t use Setup Assistant to configure your Internet 
connection, you can use Network Setup Assistant later (see “Using Network Setup 
Assistant to Connect”...

114 Appendix C   Connecting to the Internet
 
ÂDial-up connection:  Your computer is connected to an external modem that is 
plugged into a phone wall jack using a phone cable.
Before you connect to the Internet:
1Set up an account with an Internet service provider (ISP). 
2Gather the connection information you need from your ISP or network administrator. 
See the next section, “Gathering the Information You Need,” to find out what 
information to get for each type of connection. You can write the...

Appendix C   Connecting to the Internet115
 
3If you are using an external modem such as the Apple USB Modem (sold separately), 
plug it into a USB port on your MacBook, and then use a phone cord (not included) to 
connect the modem to a phone wall jack. If you are using a DSL or cable modem, 
follow the instructions that came with the modem to connect it to your computer.
4Turn on your computer and enter information in Setup Assistant to configure your 
Internet connection.
Note:  If you already started...

116 Appendix C   Connecting to the Internet
 
To set up a DSL modem, cable modem, LAN, or AirPort Extreme wireless connection, 
choose your connection method (ask your system administrator or your ISP, if you 
don’t know):
ÂManually
ÂUsing DHCP (Dynamic Host Configuration Protocol) with a manual address
ÂUsing DHCP
ÂUsing BootP
ÂPPP (Point-to-Point Protocol)
If you’re unsure which method to use, “Using DHCP” might be a good choice, because 
the network supplies most of the required information for you...

Appendix C   Connecting to the Internet117
 
If you select “PPPoE” (for Point-to-Point Protocol over Ethernet connections), gather the 
following:
ÂService provider
ÂAccount name
ÂPassword
ÂPPPoE service name
The information below is optional. Ask your ISP or system administrator if you need it.
ÂDNS servers
ÂDomain name
ÂProxy server
Entering Your Information
After gathering your specific setup information from your ISP or network administrator, 
you can use Network Setup Assistant to connect or enter...

118 Appendix C   Connecting to the Internet
 
4Follow the onscreen instructions.
More information about setting up an Internet connection is available in Mac Help. 
Choose Help > Mac Help and search for “connecting to the Internet.”
Manually Entering Information
To enter your information manually:
1Open System Preferences > Network.
2Select from the Show pop-up menu and set options according to the type of 
connection you want to make:
ÂCable modem, DSL modem, or LAN connection using one of these...

Appendix C   Connecting to the Internet119
 
Troubleshooting Your Connection
If you have trouble with your Internet connection, you can try the steps in this section 
for your type of connection or you can use Network Diagnostics.
To use Network Diagnostics:
1Choose Apple () > System Preferences.
2Click Network and then click “Assist me.” 
3Click Diagnostics to open Network Diagnostics.
4Follow the onscreen instructions.
If Network Diagnostics can’t resolve the problem, there may be a problem with the...

120 Appendix C   Connecting to the Internet
 
Turn the modem off and on and reset the modem hardware
Cycle the power on your DSL or cable modem by turning if off for a few minutes and 
then turning it back on. Some ISPs recommend that you unplug the modem’s power 
cord. If your modem has a reset button, you can press it either before or after turning 
the modem off and on again.
PPPoE Connections 
If you are unable to connect to your ISP using PPPoE, first check the cables and power 
supplies, and then...