Hats off to Kook, the tech at VRinsight.com who debugged their fine software VRiSim.exe and posted the new-and-improved October 7, 2012 revision on their website.
OFFICIAL VRinsight Software Download Area
You want the BASE PACKAGE, which the download link appears all by itself on the webpage BEFORE the individual PANEL MODULES are listed. If this is a first-time install of new VRinsight hardware, you will need the BASE PACK, PLUS the modules that match whichever pieces of VRi gear you own. In my case that is the V737 OVHD, the CDU-II (FMC) and the MCP Combo II (Boeing).
This highly-refined version of VRiSim.exe and the associated software modules that match whichever VRi products you own has once-and-for-all solved a problem that some users experienced with 16 to 20% of CPU being used up by the VRiSim.exe control software. Turned out an improperly-written line of multi-thread code was causing horrible CPU over-use during flight, which killed performance and resulted in other problems for pilots flying the VRinsight hardware (NOT EVERY PILOT WAS AFFECTED).
The current release of October 7, 2012 appears to run at ZERO CPU UTILIZATION for the entire flight and is MUST-HAVE software update.
Use Windows Control Panel - uninstall ONLY the old version of VRiSim.exe (you do not need to uninstall the matching hardware-specific modules), then install the new version release date 10/07/2012. JOY!