I thought I'd try to revive this subforum with a "common mistakes" thread. What mistakes one might make obviously depends on one's native language (due to what is known as "L1 interference" or "language transfer") – and I won't be able to cover all possibilities (neither am I natively fluent in all the languages in the world[!]), so I'll be focusing on common mistakes made by English and Norwegian speakers. I'll hopefully add more entries (depending on demand).
Let's get started, shall we? Today's topic is...
1. Capitalization of Words in Titles and Headings
The general rule is, unlike in English, that words are not capitalized in titles. Exceptions are made for the first word in a sentence and for proper nouns. A heading for this entry could thus be:
"Om stor forbokstav i overskrifter (av Astrum)"
"Om Stor Forbokstav I Overskrifter (Av Astrum)"
"Om Stor Forbokstav i Overskrifter (av Astrum)"