Our users of CS6 (and 5.5) are storing documents in SharePoint Online (Office 365). When they go to click on the documents, instead of opening up in the InDesign application, they are prompted to download and save the file. It's like it doesn't recognize that the client has the application installed. We had a similar issue with PDF files about 2 months ago, but a combination of a Reader upgrade and apparently some change on the MSFT side of things cleared it up.
Anyone else seeing this behavior? Is this "by design", or is there a workaround?