QUOTE (rob5029 @ Jul 20 2009, 12:10 PM)

when I try to use the simulator, i frequently get the following error message:

I have no ides why this would be, as several other programs, set up in exactly the same way, will run in the simulator no problem.
any ideas?
Hi Rob(?),
Firstly, 8.1 is not quite the latest and there have been many CX-Simulator posts here, so expect there are bug fixes in the latest version. Run the Auto update tool and (in my opinion !!) always best to install ALL the updates - but certainly the "Common Files" "CPS Files" and "CX-Programmer..." of course.
Secondly regarding "...other programs set up in the same way.." suggest you are trying to use a manual set up. Are you aware that CX-Programmer is the only tool to also have a "Work Online Simulator" (press Ctrl+Shift+W) which for a normal project, automaticlly starts the simulator, downloads and starts it without any ports settings etc !! Try this and I suspect it will work.
Regards,
Bertie.