Hi Marco it is due to the way your Windows is reading the software. It is an easy one to fix. 1. Go to Control Panel 2. Select the Region and Language link 3. In the Formats tab select the format (or region depending on what version of Windows you are running) from the drop down box and change it to Englsh (Australia). 4. Click Apply 5. Click OK 6. Re-open Vertical Mastery it should work ok now. A couple of points to look out for here and that is some people have been opening the Languages tab and changing that to English (Australia). This doesn't work. I don't know why Windows has different code around the world but it is one of those things you live and learn from. Regards