I have a 5-year-old laptop, given to me by someone else as a gift, that uses: a 32-bit operating system, Windows 7 (with Service Pack 1), and Internet Explorer 8. A system message told me I need to upgrade Adobe and Silverlight. I accomplished the Adobe upgrade without problem. For the Silverlight upgrade, the instructions say to first uninstall the existing Silverlight software before installing the updated software. However, in the System Requirements, for Windows, it says the phrase that I quoted in the "Question" box above. I am not sure what it means. I am confused by the words "for IE only"; I'm assuming IE means Internet Explorer, but I don't know what this short phrase is trying to say. Is the "bottom line" that my 32-bit operating system is insufficient to receive the Silverlight upgrade, or is it enough? I need to know. I don't want to uninstall my existing Silverlight software yet, because of the possibility that I can't install the new software; I don't know what adverse effect would occur if my laptop doesn't have any Silverlight working on it at all. So I'd appreciate being filled in on this. Thanks!