It is not a problem with the form not being available. Today, using the same desktop instance of QBDT I was able to complete and print a 941 for one of my companies but the second company file keeps telling me the update is not installed although it is installed, I've installed it multiple times, I've done the "reset update" while "running as administrator" and installed the complete QBDT update, checked all of my "payroll set up" options etc.