There are some occasions when your program may look for external file.
The external file path is relative to the source code path (or the compiled application
path).
If you haven't saved your program even once then there is not any known path and
Basic4ppc won't be able to find external files.
Example:
To play a wave file named music.wav that is located at the same folder of the source
code (or compiled application) you need to write: Sound ("music.wav")