ODBC - Sage 50 and Office 365 - Inconsistent

We have three PC's using Sage and using ODBC to access the sage data in Excel and Access.  The PC's are identical: hardward, OS, everything.   Two work fine using teh 32 bit ODBC.  One, which happens to be the Sage Data server, will not allow the ODBC connection.  The error is: ODBC: ERROR [IM014] The specified DSN contains an architecture mismatch between the Driver (32-bit) and Application (64-bit)

I think its old news that we have to use the 32 bit ODBC -and that's what works fine on the other two PC.s  Any ideas why this PC is showing the error?  

Thanks,