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Notes, Cautions, and Warnings
NOTE: A NOTE indicates important information that helps you
make better use of your computer.
CAUTION: A CAUTION indicates potential damage to hardware
or loss of data if instructions are not followed.
WARNING: A WARNING indicates a potential for property
damage, personal injury, or death.
Information in this document is subject to change without notice.
© 2011 Dell Inc. All rights reserved.
Reproduction of these materials in any manner whatsoever without the written
permission of Dell Inc. is strictly forbidden.
Trademarks used in this text: Dell and the DELL logo are trademarks of
Dell Inc.; DLP and DLP logo are trademarks of T
EXAS INSTRUMENTS
I
NCORPORATED; Microsoft and Windows are either trademarks or registered
trademarks of Microsoft Corporation in the United States and/or other countries.
Other trademarks and trade names may be used in this document to refer to either
the entities claiming the marks and names or their products. Dell Inc. disclaims
any proprietary interest in trademarks and trade names other than its own.
Model 4220/4320
March 2011 Rev. A00