We have just migrated from NT to 2000 taking with us Excel
documents written in Office 97 format.
Previously, if a user was in a spreadsheet and another
users tried to open it, the second users wouls get the
options, cancel, read-only or notify. Now on a 50-50
basis, users either get this message correctly or are
allowed in. We then have two users using the same file
which usually results in the document corrupting and any
work being lost.

Any help would be gratefully appreciated.
(Frustrated Sys Admin)