ODBC Error Message: Configuration Process Failed...

A second error appears that says "Could not write to registry". I have an
ODBC connection that our team added to a number of users machines. Through a
button it is pulling information from an Access DB. The connection worked,
when set-up, on all but about 6 machines. The errors, as mentioned above,
were "Configuration Process Failed" and "Could not write to registry". I
have been unsuccessful in locating a topic in forums, help files, etc,
related to this. Has anyone seen this before? Do you know a solution?
Thank you!