opengl fonts on dynamic style. help ...

[ACSS]

hi.
i need some ?. help.
i hawe a full header of free font library for standard opengl.
i works wery well.
but when i try to rotate the text it hiding or can't showing.
can anyone say why.
it uses glbitmap on its main.
i think this bitmaps are not dynamic.
can anyone help me .
to conwert this fonts to dynamic style.
thanks..

>>>the code is here <<<


this is my call commands
beginRenderText( 100, 100 );
{
//glRotatef (0.1, 0.0f, 0.0f, 1.0f); this is closed because breaks the process.
glColor3f( 166.0f, 198.0f, 968.0f );
sprintf(c0,"%f ---%f",theta ,r);
renderText( 0, 24, BITMAP_FONT_TYPE_TIMES_ROMAN_24 , c0 );}
endRenderText();