Make sure you have the lastest version of NV2 installed (2.07). Check your Help > About Window to verify.
Open the spreadsheet template in Excel and then click Insert > Name > Define and search the Name Define list for the existence for two defined names:
Both of the above names should be defined in your template. If they are set then I suggest that you send an email to email@example.com with the attached template for review. Quote the suject and the text in your posting in your email.