To check if it is a locale test, try in an xterm : LANG=C && gcalctool
And see if it is the same behaviour.
Regarding the separator, it is an already existing bug that has been reported upstream.
To check if it is a locale test, try in an xterm : LANG=C && gcalctool
And see if it is the same behaviour.
Regarding the separator, it is an already existing bug that has been reported upstream.