Upgraded to Windows7 and now every time I reboot, I get a nag that I must download .net 2.0 framework to contine.  The upgrade completed easily and re-added all software that was deleted using the Dell upgrade assistant disc.  I tried re-downloading the 2.0 .net framework from the Microsoft site, but when I try to install it, it says it's already installed.  Right now, all I can do is close the nag box and ignore it.  How do I get rid of it permanently?