[@lynq Participant 14 years, 3 months ago]

This is how I did it:

1) get your fresh install sorted with a new copy of bbpress.
2) take the contents inside of /wp-content/plugins/bbpress/bbp-theme-compat and copy it to the root of your theme, for example: /wp-content/themes/RainCloud/

This is what worked for me and then I could edit the bbpress.css file inside my RainCloud theme and it worked perfectly straight away.

If this doesn’t work I would guess some kind of plugin or theme conflict!