I just installed Acrobat Pro XI.  When I went to start the program asked me for a serial number, which I have, but the menu drop-down did not include Pro XI and gave me an error message

I can't not far as this screen because the serial number does not match any product on the menu drop down.

Apparently, it sounds as if you have purchased an upgrade, which if so would have been a mistake. Of course, if this is not the case, check received. If still not sure please tell us price paid.

Tags: Acrobat

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