Comment 8 for bug 102094

Hi Nevin,

The issue discussed in this bug is that Ubuntu will not automatically import your settings from Vista. The concern is not that it will be overwritten.

That being said, as a safety precaution, I would still strongly suggest that you back up your Vista install before proceeding with installing Ubuntu.

For more info on dual-booting, see here:
https://help.ubuntu.com/community/WindowsDualBoot

If you have any more questions about this, please post in the Ubuntu forums, at http://ubuntuforums.org

Good luck!
-Gabriel