Does anybody else have the problem with Thunderbird changing fonts while composing emails? It happens to me all the time. I've set the default font to be Arial and samll (TOOLS > OPTIONS > COMPOSITION), but that seems to be ignored. Instead it seems to revert to a larger font size and Times New Roman font. No idea why it does this, but it is very annoying. And because of the way Thunderbird handles font formatting, you can't just hightlight the whole email and set the font and size.