Embedding Myriad Pro Semibold in Flash CS5

Question

I'm trying to embed and display text using the "Myriad Pro" family. 'Regular', 'Bold', and 'Light' display ok, but 'Semibold' shows no text. I get no error messages. I use exacty the same procedure as for the other styles. E.g. the following:
var fmtUnit = new TextFormat();
    fmtUnit.font = "Myriad Pro Light";
    fmtUnit.color = 0x07251D;
    fmtUnit.size = 25;
displays ok in 'Light', but if I change the font name to "Myriad Pro Semibold", the text disappears. Again, if I change it to just "Myriad Pro", I get the text in 'Regular'; if I then add fmtUnit.bold = true; I get it in 'Bold'.
I've tried some other spelling variants, like "Myriad Pro SemiBold", "MyriadProSemiBold", and "MyriadProSemibold", all with and without the line fmtUnit.bold = true;, but nothing works. Is this some sort of a bug? I thought that with Myriad being an Adobe font it was the safest choice; I've embedded semibold fonts before and they worked fine; the problem here is that I have to use this particular font on client's orders.
TIA, Ninna

Answer 1

Adobe font designers, please tidy this up!
Having compared various fonts, it turns out that Myriad Pro in question consists of 2 subfamilies: "Myriad Pro" and "Myriad Pro Light", and that, let not the font name mislead you, "Myriad Pro Semibold" is in fact "Myriad Pro Light" 'Bold', so the proper way of setting the TextFormat for 'Semibold' would be:
var fmtUnit = new TextFormat();
    fmtUnit.font = "Myriad Pro Light";
    fmtUnit.bold = true;
    fmtUnit.color = 0x07251D;
    fmtUnit.size = 25;
I hope this will help others with myriad problems.