Redmine

I've recently inherited administration of my company's in-house project tracking system built on Redmine 2.1.2. I'm putting together a new project wiki, and none of the textile text formatting is working

 *bold*, +underline+, and !inlineimage! are ones I've tried.

Hyperlinks, mailto links, wiki links, and links to issues (#777) are all working. Any thoughts as to what might be causing this?

Environment:
Redmine version 2.1.2.stable
Ruby version 1.9.3 (i386-mingw32)
Rails version 3.2.8
Environment production
Database adapter Mysql2
Redmine plugins:
AgileDwarf 0.0.3
redmine_issue_checklist 2.0.4
redmine_monitoring_controlling 0.1.1
stuff_to_do_plugin 0.5.0