has anyone had a problem installing the newest version of mdac? i always get at the end of the setup and it tells me that setup failed, contact software vendor. i got the file off of microsoft.com. now everytime when i boot up i'm getting an error message saying at least one service or driver failed during system startup. the services is: Service Control Manager and the description is : The Internet Authentication Service servcies terminated with the following error: The data is invalid<BR><BR>is this a common problem?