Apple has started a replacement program to fix MacBooks whose rubber surface is separating from the bottom case. The program covers MacBooks shipped between October 2009 and April 2011 that are exhibiting the problem. You can take an affected MacBook to an Apple Retail Store or Apple Authorized Service Provider to be fixed, or order a replacement kit online and do the work yourself. follow link
Data Tables in Microsoft Excel 2008
Data Tables let you see how the results of a formula change as its underlying variables change. After entering data, select the entire table and choose Data > Table. Then tell Excel which row input cell and column input cells you want the table to use. Finally, click OK. Excel will crunch the numbers and present a new Data Table.
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MacBook Bottom Case Replacement Program