iTunes Font Issue?

I think that's do with with font drivers, I think. The computer displays those squares instead of the real font because it doesn't have the font data, I think, at least on the PC that's why.

I had this problem on an old PC of my family's, and a restart worked I think - try opening/closing iTunes and then a restart if that doesn't work. It could be just an error that occurred when you first opened iTunes.