Troubleshooting
1.- The game is much slower in high-resolution modes.

        This is because your graphics card is not fast enough. Try playing at low resolution (320x200)

2.- The game changes speed in some screen modes, becoming too fast.

         You can adjust your graphics refresh rate at Control Panel/Screen Properties/Configuration/Advanced...You should set it to 70 or 75 Hz.

3.- The game graphics are jerky.

        Try reducing the graphics resolution.
 

Possible error messages upon starting the game:

4.- 'Unable to get Windows info'.

        Your Windows operating system is not working correctly. Try installing it again.
 

5.- 'Out of memory'.

        Your system hasn't got enough memory to run the game. Check that you have got 32 Mb at least and don't run any programs at the same time.
 

6.-  'This  application  requires  DirectX  7  or  later', 'DirectDraw init failed' o 'DirectInput init failed'

        Your system hasn't got DirectX 7 or better drivers, which are needed to run the game.
 

7.- 'This application requires Windows95 or later'

        The game is only compatible with Windows 95/98 or better.
 

8.- 'Memory access error', 'Application init failed' o 'Memory init failed'

        A memory access error has happened. Try it again after restarting the system.
 

9.- 'Unable to create configuration file'

        The configuration file ASTRO.CFG was not created in the Windows directory.  This doesn't affect the gameplay but the highscore-tables and the cofiguration will not be saved.  Check that you don't have a file with that name on the Windows directory.
 

10.- 'Unable to load files'

        Some game files are not OK. Try to install again.