Adobe Reader has encountered a problem and needs to close.

When reading PDF attachments, I get the following:  Adobe Reader has encountered a problem and needs to close. I have tried to remove Adobe Reader via Control Panel, Add or Remove Programs but that won't work.  I get this:  This patch package could not be opened.  Verify that the patch package exists and that you can access it, or contact the application vendor to verify that this is a valid Windows Installer patch package. I don't know how to do what is being asked.  I have tried to download Adobe Reader again but get this when I do:  Note:  this application already installed.
I have Adobe Reader X (10.0.1) with an update installed on 2/19/2011.  I have Windows XP SP3.
Anyone who can help me get Adobe Reader working correctly again or uninstalling it so I can reinstall.
Thanks for any help.

Thanks for the input.  Did you remove Adobe Reader 10 first before you downloaded the older version?  If you removed it, how did you do that?  The add/remove programs in control panel won't let me remove it -- it says a patch package can't be opened.
Date: Mon, 9 May 2011 00:12:41 -0600
From: [email redacted by moderator]
To: [email redacted by moderator]
Subject: Adobe Reader Adobe Reader has encountered a problem and needs to close.
hi
i had also the same problem with that version.
so i download older version and this solved the problem.
>

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