Acrobat XI can't see my Brother MFC-6490-CW scanner since installing Windows 8.1

The scanner works fine with Windows Scanner/Fax and other apps but Acrobat can't even see the scanner.  The issues seems to be just with Acrobat.  I have uninstalled and reinstalled the Brother drivers multiple times but the result is the same.  I initially had the same issue in Acrobat 9 so I upgraded to XI.