There is a shortcut to the configuration program in the DD Start menu folder, where you can change the resolution (check the 'skip test' box to skip the test). Alternately, or to play in unsupported resolutions, you can edit the config.div file in Notepad (or any text editor), though there may be minor problems with the auto map doing this.
The game version is displayed in the bottom right corner of the main menu. The latest patch version 1.34 corresponds to the game version 1.0034A (original English release is 1.0029A; re-released versions may already be patched).
Updating or re-installing the patch should not adversely effect your saved games, though some bugs can not be fixed retroactively.
