Contacting dell, Solved the problem, see "contacting – Dell Latitude E4200 (Late 2008) User Manual
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Getting Help
51
Contacting Dell
For customers in the United States, call 800-WWW-DELL (800-999-3355).
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 contact Dell for sales, technical support, or
customer service issues:
1 Visit support.dell.com, and verify your country or region in the Choose A
Country/Region drop-down menu at the bottom of the page.
2 Click Contact Us on the left side of the page, and select the appropriate
service or support link based on your need.
3 Choose the method of contacting Dell that is convenient for you.