Error while loading Orca3D Plug-In

If you are receiving an error while Rhino is trying to load the Orca3D plug-in:

1. Be sure that you are running Rhino 4.0 Service Release 3. Earlier Service Releases will not run Orca3D

2. If you are using European keyboard settings, where the Decimal Separator is a comma, Orca3D will not load. This WIP of Orca3D does not yet handle a comma as the decimal separator. Before running Orca3D, you will need to change your Regional and Language options so that the Decimal Separator is a dot (.), and the List Separator is a comma (,). This requirement will be removed in a future release. To make this change, open the Control Panel in your Start menu, and select Regional and Language Options. On the Regional Options tab, click the "Customize" button, change the Decimal Separator to a . and the List Separator to a ,