My Win7 SP1 start menu is set to list the items in the Control Panel in a list window. When I choose one of the Control Panel items such as System, Opus opens a new window that is empty. If I drill down to C:\Windows\System32\sysdm.cpl and double click, the System Property window opens as expected. I have set Opus to replace Windows Explorer. I uninstalled Opus 12 and selected Control Panel from the start menu, and then clicked on System, and it opens as expected. When I reinstalled Opus 12, and click on System, again I get a blank window.
What should I change to allow the control panel programs to open properly with Opus 12 installed?