I've had the same problem with, 'Celtic Garamond the 2nd', using Linux Mint and Inkscape 0.48. The problem in this case seems to be with the number in the font name. While trying to edit the XML directly in Inkscape (to see if I could find a way round the problem), I noticed that everytime I set the style attribute with "font-family:Celtic Garamond the 2nd", it was reduced to: "font-family:Celtic Garamond the".
Hence, for some reason Inkscape does not like the number. I tried adding either single or double quotes around the font name but these were lost. I then tried editing it in an external text editor. On loading into Inkscape the font now displayed correctly! However, it get's lost again if you try to edit or resize the text.
Sorry that should have read:
I've had the same problem with, 'Celtic Garamond the 2nd', using Linux Mint and Inkscape 0.48. The problem in this case seems to be with the number in the font name. While trying to edit the XML directly in Inkscape (to see if I could find a way round the problem), I noticed that everytime I set the style attribute with "font-family:Celtic Garamond the 2nd", it was reduced to: "font-family:Celtic Garamond the".
Hence, for some reason Inkscape does not like the number. I tried adding either single or double quotes around the font name but these were lost. I then tried editing it in an external text editor. On loading into Inkscape the font now displayed correctly! However, it get's lost again if you try to edit or resize the text.