Try to append the path with win64_x64.
You can first copy the existing path in notepad add a semicolon in the end and then append the line C:\SAP BusinessObjects\SAP BusinessObjects Enterprise XI 4.0\win64_x64
If you still face the issue then try to run a webi report based on same unx in the BI launchpad,just to check if this is something with the connectivity or dsn