Speed Doubler 8.1 Coming in March -- Connectix has posted a Speed Doubler 8.1 FAQ that explains why Speed Doubler 8.0 and 8.0.1 don't work with Mac OS 8.1 and claims that a free update will be available in March. In short, the differences between Mac OS 8.0 and 8.1 are sufficiently great that Connectix designed Speed Doubler to disable any of its components that could cause conflicts under Mac OS 8.1. [ACE]
Is it a Unicode Font?
To determine if your font is Unicode-compliant, with all its characters coded and mapped correctly, choose the Font in any program (or in Font Book, set the preview area to Custom (Preview > Custom), and type Option-Shift-2.
If you get a euro character (a sort of uppercase C with two horizontal lines through its midsection), it's 99.9 percent certain the font is Unicode-compliant. If you get a graphic character that's gray rounded-rectangle frame with a euro character inside it, the font is definitely not Unicode-compliant. (The fact that the image has a euro sign in it is only coincidental: it's the image used for any missing currency sign.)
This assumes that you're using U.S. input keyboard, which is a little ironic when the euro symbol is the test. With the British keyboard, for instance, Option-2 produces the euro symbol if it's part of the font.