Dear sir,
I followed the steps showed in the RayMayManual to calculate SVF. But after I clicked "NEW" button, it gave me an error information "108?7 ist kein gultiger Gleitkommawert". I guess the error was caused by the wrong latitude and longitude format. I tried to change it, but it always became a "?". I tried to edit the location file, but it didn't work.

I really need your help, sir.

Best Regrad.