In the template maintenance window, is the template assigned as the default? It should be, if there is only one template, but worth checking.
In the sales transaction entry window, when the report destination window opens, are you able to select "template" even if "standard" appears by default?
In the Alternate/Modified Forms & Reports window, are you set to use the original invoice, or a modified invoice? (Microsoft Dynamics GP >> Tools >> Setup >> System >> Alternate/Modified Forms & Reports)
