When I try to download Reader 9.1 the process nearly finishes but then tells me "Adobe Reader 9.1 requires Internet Explorer 6.0 or greater. Please visit www.microsoft.com to upgrade Internet Explorer". I now have IE 7.0, but am still getting the same message. I checked to be sure I do not somehow have 2 versions of IE on my machine. Am I missing something here. Any help would be appreciated.
You say this happens during the download - or during the install?
Anyway, assuming that you want the English version for Windows, try to download Reader 9.1 from here ftp://ftp.adobe.com/pub/adobe/reader/win/9.x/9.1/enu/ - the first two installers do not contain Adobe AIR & Acrobat.com; close your browser when installing the Reader.