I was running 1390 in my development environment, which is one server running SQL 2008 and Blackpearl, and a second server running Sharepoint 2010. Visual Studio is installed on the Sharepoint server, and I have developed 6-8 different K2 workflows.
I just downloaded 1540 and installed it on both servers, and now my Visual Studio toolbox is empty. Any clues on what is going on?