NIS 2010 install over current subscription 2009 ?

Anyone here experience any problems installing 2010 over 2009 ?

Reason I ask is last year when I attempted to install 2009 over 2008 I got a corruped install !!!  I had to totally uninstall 2009 + use the Norton uninstalll tool, once I got the 2009 disc, and then reinstall it.

 

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