Not sure whose problem this is - might even be mine, I suppose - but I am getting repeated crashes of Window Explorer when I try to uninstall Acrobat Reader 9. The crash occurs as soon as I confirm that I want to uninstall the program. Also happens if I select "Change" - immediate crash and restart. The reason for uninstalling it is because it was originally installed into Win7 before Office 2007, and I don't think the preview handler got installed. (There IS a preview handler for Office 2007 in Reader 9, right?!) Attempting to run the Reader installer again (without uninstalling first) results in a fail of the Adobe Air installer. Anyway, I've submitted details for all these crashes! Ignore this - it seems to be related to problems other are having suddenly with repeated msi failures!