When installing eZ publish using the setup wizard:
One the second page for System check:

The line:

cd /var/www/ez391rc1
mkdir settings/siteaccess/demo settings/siteaccess/user var/cache/codepages var/cache/content var/cache/ini var/cache/override var/cache/template var/cache/template/process var/cache/template/tree var/cache/texttoimage var/cache/translation var/log var/storage/original var/storage/reference var/storage/variations

are using the full with of the page, which breaks the design, atleast in opera 9.0

Solution could be to add a mkdir on each parameter on one lince each or calculate how many characters a line should have or adjust the css, so the line are not forcing to use the whole with.