Hi, An:
What does that starting page look like? You don't have a File menu to pull down?
When I open my (pretty old) NetBeans
IDE and close all projects, I see a kind of T-shaped screen with three boxes and it has the menu bar at the top. It may be (if memory serves) it had an ad-like screen talking all about how great NetBeans was on one of the large panes. If you don't have a menu bar, please attach a screen shot.
Regards