How to update database connection details in symfony (maybe propel?)

[inesysilk]

I don't develop with symphony but need to update the database connection details for a couple websites developed by third parties running it.They appear to make use of propel.I've updated the dsn in database.yml but this has just taken the site offline (500 error)Any idea what I might have done wrong or may need to do to force the changes through. Is there some kind of update script I need to run?In case it helps I seem to have propel-init-crud, propel-generate-crud as options for propel when I run: > php symfony propel