Japanese environment on Linux and GrxUI

Java-based or X-based input system failure causes slow behavior of user interface using GrxUI on the japanese environment on Linux. In this case, the behavior can be improved by changing locale to English.

Checking current locale on Linux is as below. 

$ set | grep LANG
On the japanese environment, for example, the result is shown as below. 
LANG=ja_JP.eucJP
When inputting like this, locale is set to English. 
$ export LANG=C