I don't run Windows, but I do know how to fix this problem on Mac OS X (see my web page).
Based on that, I can at least provide a guess as to what you should do. However, I can't guarantee that it will work because I have no way to try it. So use this prescription at your own risk:
- Download the Mathematica fronts from the official web site (they also come with MMA, but I don't know where they reside on Windows).
- In the extracted directory, locate the
- In another window, find the directory
<System Disk>:\Program Files\Common Files\Adobe\Fonts (the
Adobe folder should already exist, but you may have to create the
- Drag the
Type1 folder found in the first step into the directory found in the last step.
Now restart Illustrator, and with some luck you'll have the Math fonts available.