Kiwi. You using VAA title blocks or Drawing Border. Do you have VA Australia+NZ. If not then you may have to go to the plugins folder and edit the VA TB Resources.mcd Not too sure as I've Installed the VA Aus+NZ and it has overwritten the VA. If you in NZ suggest getting the VA Aus+NZ from Ozcad or ask Megabits.
Don't think changing your system date will work.