Appendix; Safety Instructions; Contact Dell; Setting Up Your Monitor - Dell D2421H User Manual

Appendix

Safety Instructions

WARNING: Use of controls, adjustments, or procedures other than those
specified in this documentation may result in exposure to shock, electrical
hazards, and/or mechanical hazards.
For information on safety instructions, see the Product Information Guide(SERI).

Contact Dell

NOTE: If you do not have an active Internet connection, you can find contact
information on your purchase invoice, packing slip, bill, or Dell product catalog.
Dell provides several online and telephone-based support and service options.
Availability varies by country and product, and some services may not be available
in your area.
To get online Monitor support content:
See www.dell.com/support/monitors
To contact Dell for sales, technical support, or customer service issues:
1. Go to www.dell.com/contactdell
2. Verify your country or region in the Choose A Country/Region drop-down menu at
the top-left corner of the page.
3. Click Contact Us next to the country dropdown.
4. Select the appropriate service or support link based on your need.
5. Choose the method of contacting Dell that is convenient for you.

Setting Up Your Monitor

D2421H/D2721H
Setting display resolution to 1920 x 1080
For best performance, set the display resolution to 1920 x 1080 pixels by performing the
following steps:
In Windows Vista, Windows 7, Windows 8 or Windows 8.1:
1. For Windows 8 or Windows 8.1 only, select the Desktop tile to switch to classic
desktop.
2. Right-click on the desktop and click Screen Resolution.
3. Click the Dropdown list of the Screen Resolution and select 1920 x 1080.
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