&nbsp;<BR>We upgraded our web server from IE4 to IE5, this caused the MDAC version to go from 2.0 to 2.1<BR>Consequently, all the new DSN&#039s that we created on the web server after the IE5 installation cannot be used by our Visual Interdev ASP applications. The DSN&#039s that we created before the IE5 installation still works though.<BR><BR>If anybody has knowledge of this, please let me know. I need validation.<BR><BR>Thanks.