"You have chosen to use a pre-existing partition for this installation "
"without formatting it. We recommend that you format this partition to
"sure files from a previous operating system installation do not cause "
"problems with this installation of Linux. However, if this partition "
"contains files that you need to keep, such as a users home
directories, then "
"you should continue without formatting this partition."
"a users home directories" looks like bad English.
The wording now says:
"However, if this partition contains files that you need to keep, such
as home directories, then continue without formatting this partition."
Should be fixed in cvs. Thanks for your report.