[ruuk]

Forumbrowser did currupt my quartz skin by changing dialogkeyboard.xml and font.xml
The search dialog in quartz was unreadable.
After uninstalling forumbrowser and changing the backup files back to the originals my problem was solved.

The addon didn't work for me, I couldn't choose xbmchub.com xbmcandroid.com etc. really nothing did work.
xbmc.org was the only xbmc forum that could be chosen.

I'll try installing the quartz skin and see if I can find out what the issue was. The modifications should normally not cause problems. The keyboard mod replaces the whole file, and the fonts mod adds some fonts to the file. Something must be different in this skin that I did not anticipate.

I'm not sure I follow you you about not getting anything to work.
You said you couldn't choose the other forums. I assume that means they weren't choices because they weren't added.
The only forum that is added by default is xbmc.org. If you want to use another forum, you have to add it either from the Forum Browser online database, or by trying to add it manually by using 'Add Forum' and entering the forum main page URL. These are options on the Forums dialog when you press right.

You said you could choose xbmc.org. Did that forum not function?