Certain fonts will not display

I am having a problem with certain fonts in DS.  When I select most fonts, the preview window and text in the drawing show the correct font.  Some fonts, specifically Script MT and Britannic, show the default font instead.  These fonts are loaded on my system in Windows 7 and display correctly in other applications and in the Windows font viewer.  The settings and permissions appear to be identical to, say the Magneto font which works fine in DS.  They are all True Type fonts.  Any help would be greatly appreciated.