I have upgraded my computer to Windows Vista Ultimate (64 bit). I have installed JAVA version 1.6.0_16 for Vista (64 bit). I have jspWin.dll in my path. I have also upgraded to Internet TRiLOGI Version 6.24 build 03. I am able to run Trilogi and create, save, and load programs as expected. My problem is in the simulator. It doesn't seem to be executing anything. For example I can create a single rung with one input and one coil. When I run the simulator and right click (control enabled) on the input it will highlight in the simulator but the coil does not highlight indicating that it is energized. Neither the input nor the coil change state in the program. When I exit the simulator the program will then update to show the input highlighted. HELP!