5.9d Changes

The Installation program has been modified to make it easier for use with Vista and Windows 7. Administrative rights are no longer required for installation. If you are logged in as an administrator Vensim will be installed to program files. If you are logged in as a standard user Vensim will be installed into the local application data folder. Sample models and supporting files will be installed into a public folder or your home directory for standard users. Note that when installing Vensim DSS or the Vensim Model Reader as a standard user the Vensim DLL will be put in the same directory as the program, not in a system directory. This means you will need to move it to a different directory or add the program directory to your system PATH in order to use the DLL. If you install as a Standard User there will be a menu item to uninstall Vensim since Vensim will not show up in the list of installed programs. NOTE: Uninstalling as a standard user may put up a dialog with a message about a shortcut referring to a location that no longer exists, this does not cause any problems.

The Vensim Error Log and Initialization setting default locations have also been changed. The default initialization settings will be kept in the Vensim folder of Application Data (usually c:\documents and settings\username\application data\vensim) . The error file will be put there, or in the Local variant on Vista/7 if it can't be opened in the same directory as the Vensim executable.

The Reset and Reset All buttons in SyntheSim now return Constants and Lookups to the values they had on entry to SyntheSim rather than the values set in the model equations. Alterations of Constants and Lookups from change files, live spreadsheet links, database queries and changes made in simulation setup mode are now retained to support this reset.

In simulation setup model Lookups are now a slightly different color from Constants so as to more easily distinguish them.

When starting SyntheSim if an error occurs the error log opens and displays the error in addition to showing the dialog indicating there were problems with the simulation.

When checking a model only the first 128 errors and 128 warnings are reported preventing long lists of errors which are slow to display. The same applies to simulating a model.

The Runs Compare tool no longer requires the Time Axes for Data variables to be identical.

Bug Fixes

Subscript Ranges requiring quotes were not displaying their elements in the Equation editor when selected from the dropdown under the Subscripts tab.

When adding the first point in the Lookup Editor by entering numbers if the x value was out of range of the displayed x axis the software would stop responding.

DSS Only: In Venapps message functions during screen setup would cause the application to hang.

Units errors in :EXCEPT: equations would sometimes cause Vensim to close during units checking.

Not all right hand side variables were consistently displaying unit assignments when errors were reported for Level equations during units checking.

The Units Equivalent tab on the Model>Settings dialog was opening with the globally defined units equivalents, not those specific to the model.

Deleting a selection of variables from the model would fail and only delete from the current View when the selection included Time or another built in control variable.

PLE and PLE Plus only: Adding in a Shadow variable would not display the variable until the view was refreshed.

Pro/DSS Only: Input Sliders were sometimes disappearing in SyntheSim mode when subscript or run selection changes were made.

Long comments in sketches would sometimes cause the variables to disappear from the View with the comments, but remain in the model.

Models using both GET XLS CONSTANT and GET XLS DATA would sometimes fail to start SyntheSim.

Using the Runs Compare tool multiple times could case Vensim to stop responding.