Hello all,
I got a decimal fields and I set it to Currency on a grid.
I don’t know why but now the ? is now show and instaed I see a “?” .
I did check all possible setting (see image) but I’m not able to understand why it happens !!
Many thanks
OK … 
[SOLVED]
The problem was that on Application setting was set to ISO… and not to UTF8 …
Now it works as expected.
Need I to check all applications now ??