MacOS – Preview missing lots of fonts that are shown in font book

As Chris Redman said, the fonts are fine.

To access the glyphs in this font, you'll need to use the Character Palette.

Follow the directions he gave to show the Character Palette, then click on the Action button in the upper left corner of the window and choose Customize List…. Scroll down in the list and choose Dingbats, like shown in the image below:

Then choose the Dingbats category in the main window, then choose the appropriate font in the popup menu in the center column. The lightning bolt is shown in the image below.

As you can see, the Unicode value of that glyph is U+F07E, which is way the heck out of the range that you're going to be able to reach with your keyboard alone.

P.S. Both BBEdit and TextWrangler are Carbon-based apps. (Well, they could be hybrid, but the majority of the text-handling appears to be Carbon (HITextView?)).

If you want to get anal about fonts you may find this PDF useful. It is by Extensis, the guys that make things like Suitcase Fusion and Universal Type Server/Client.

It is full of handy advice from a general viewpoint (i.e. not 'buy our product') and probably more information than you really want or need.

I'm not sure if it has been updated for Lion yet so tread carefully if you carry out any system font management on the basis of something in the PDF. I haven't used Lion enough yet to know how differently it handles fonts to 10.6 so will probably struggle to help if something goes wrong!