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I suspect I crashed Windows 7 rasterizer. I was investigating how my (silly) font was looking at 8pt/em (in Notepad); now Notepad fonts' selection is quirky when I try to choose this font (it won't show — autogenerated — Italic/Bold on the first time I select the font, only on the second time), and, while the dialogue allows me to choose font size, the Notepad continues to use the same 8pt size.
The other fonts are unaffected (even in the same Notepad session).
Is there any way to clear the rasterizer cache and ask it to start from the scratch? (Short of rebooting…)