versions

Corrections:

Syncronized graphics painting. There are two types of painting: fast and steady. In the fast mode, the painting speed primarily depends of the repainting area size. In the steady mode, the painting speed primarily depends of the window size. This feature is available in the Default properties dialog box.

New features:

One body may belong to many groups
On Screen Information about the system and the bodies
Display the Origo of the coordinate system
The bodies may be hold on to the coordinate system
The mouse pointer above a body is underlined, when the body is selected, sticked or hold
It's possible to select a group (View/Select/Group/..., BKG/Select/Group/...)
The Control Panel and the Description may be transparent, setting in the Properties window
The appears end disappears of the dialog boxes may be with or without fading effect, setting in the Properties window
The view saved to the .grav file
The application saves its location

Corrections:

To change the priority of the bodies is not to influence to stick
Control Panel (zoom/edit) and continous editing (move+, velocity+) corrections
Deleting all bodies, the visibilities switched off. When you delete all bodies, the force, speed, body and group name, etc. switched off.
The beginning of the time is "0001-01-01 00:00:00"

Changes in this version:

Demo
- A video file intruduces some features of this product
Tutorial
- An HTML format tutorial
New visual effect
- Startup picture
- Fading animation when a dialog box appears or disappears
- Icons on some dialog boxes
New Control Panel
- Four pages, all system parameters changeable during simulation
New Properties of body selected dialog box
- Randomize (and linear) distribution between the two extreme bodies
New Toolbar
- Hard and Soft refresh
- Bookmark with list menu
Further menu items
- ShortKeys and Welcome screen... in the Help menu
- Center and Center group in the body and body selected menues
Error corrections