Tim,

>First the error message isn't very helpful as it suggests my web.config file has the following setting:
>" customErrors mode = "Off" " and suggesting it should be:
>" customErrors mode = "RemoteOnly" defaultRedirect = "MyCustomErrorPage.aspx" "
>
>My Web.config file does not have this set to off so why do I get this message?

ASP.NET is giving you this error message, but I'm not sure why you're seeing it if it's set to "ON". Here's more information about this setting:

http://riderdesign.com/articles/displayarticle.aspx?articleid=1

>The real problem I think is the connection string for Access. The obvious problem is I have this in the "value=" section

I'm wondering if this might be a permissions issue. Here's a link to an article on using an Access database from ASP.NET:

http://www.aspfree.com/c/a/Microsoft-Access/Connecting-to-a-Microsoft-Access-database-with-ASPNET/

Best Regards,