If in the inspections under Spelling->Typo I enable "Process comments" but disable "Process code", it also doesn't work in comments.
The comment is a javadoc comment. If I type "asdf" in the comment, when "Process code" isn't checked, "asdf" isn't underlined in grey, even if "Process comments" is checked.
Could this be a bug?
I'm using IntelliJ 9.0.1.