Thanks for your quick reply. The samples also don't work. I have also tried for several texts. My suspicion is that there is something wrong with font_create.
Doing this also does not work (font1_red.pcx is in the game folder):
function create_text()
{
...
my_text.font = font_create("font1_red.pcx");
}
but the following does work:
function create_text()
{
...
my_text.font = LucidaConsole14;
}