Guild Wars 2

As Saeronor pointed out, materials won’t show in the discovery window if you have no remaining recipes to discover with them.

Update:
I’ve tracked down the cause of the problem. I had the UI size set to ‘large’. With this setting, the bullets between effects in target window show as ‘?’ (capital E with macron) and the long dashes in mail messages and NPC chat show as ‘?’ (capital A with ogonek).

Edit: Sadly the forum software appears to be unable to reproduce the characters.

Odd accented characters appear between words in much of the game’s text in lieu of spaces. I believe these started appearing a day or so after I started playing. They are quite annoying and I can’t find any way to get rid of them.