Just installed Acrobat X Pro for Mac on my new rMBP. I am using HP's OfficeJet Pro Plus printer/scanner combo. My Mac (Mountain Lion) is up to date and I downloaded the latest update for Acrobat. When I attempt to scan a document from the scanner the dialog box opens. The first thing the program ask is to select the device to scan with. When I click to select my HP scanner does not appear so that I can select it. Anyone have a suggestion? Thanks