[ntk14]

Hi,
I got a problem with my Nook STR, last time when I used the old version of Calibre to convert .prc to .epub, I use extra css :
@font-face {
font-family: "DroidFont", serif, sans-serif;
font-weight: normal;
font-style: normal;
src: url(res:///system/fonts/DroidSerif-Regular.ttf);
}
@font-face {
font-family: "DroidFont", serif, sans-serif;
font-weight: bold;
font-style: normal;
src: url(res:///system/fonts/DroidSerif-Bold.ttf);
}
@font-face {
font-family: "DroidFont", serif, sans-serif;
font-weight: normal;
font-style: italic;
src: url(res:///system/fonts/DroidSerif-Italic.ttf);
}
@font-face {
font-family: "DroidFont", serif, sans-serif;
font-weight: bold;
font-style: italic;
src: url(res:///system/fonts/DroidSerif-BoldItalic.ttf);
}
body {
margin-right: 8pt;
font-family: 'DroidFont', serif;
}

And I can read Vietnamese on my Nook, but now when I upgrade Calibre to 0.8.36, I do the same input some CSS - but I can not read Vietnamese on my Nook, the font is error it has some strange character likes : ? ...

Anyone can help me? My Nook still can read the old eBooks that I converted last time in Vietnamese. So my Nook is no problem (I guess), all the problem is the conversion in Calibre.

Thanks in advance