ODBC driver is whacked

Have a client whose ODBC is suddenly not working.  You can create a company-specific connection and it works fine, but if you try to use SOTAMAS90 or create a new one with no company stored, it will not prompt for the company (grayed out, can't drop down) and it will only connect to the 435 files that are not company-specific, like CM, SY, etc.  WTH?