One thing we did to fix the problem is in Equinox V1.51 beta (21 Feb 09) we forced Digital Atmosphere installer to only work under an admin account, since Vista requires admin rights to install the meteorological font. This also complies with Microsoft's view that any installation has to be done by an admin anyway.
One or two people said the fonts are still not working. So here's some tings to try:
1. First, check that you really are using Digital Atmosphere 2.00 and not an older version. Check the top of the Digital Atmosphere window or Help > About to see the version number.
2. Do a Data > Retrieve of Synoptic data, plot them, and look for any evidence of station circles, cloud symbols, weather symbols, and so forth. If you see some, then a lack of pressure tendency, etc, would be a data issue, not a font issue.

3. If there is a font issue, go into Windows Wordpad (Programs > Accessories > Wordpad) and change the font to Weather Symbols, and increase the font size to 48 so you can see the text better. Then type "the quick brown fox jumped over the lazy dog's back" (lowercase). You should see a bunch of present weather symbols (thunderstorm, sandstorm, fog, etc). Try that and we'll go from there.
4. If you see something else appear, then go into your Control Panel (you'll probably need to be an admin) and remove the WeatherSymbols font. Then install Digital Atmosphere 2.00 again in hopes that the proper rights get assigned to the font.
Tim