Where did you put Graincoin.conf file ?
This file should be created at %APPDATA%\Graincoin
And check the file name
Some user making the file as "graincoin.conf.txt", it is wrong.
You must check the file name "graincoin.conf"
Shouldn't the file be grain.conf not graincoin.conf ?
Yes, "grain.conf" is right
Sorry for making you are confused