The display of characters on the screen is largely dependent on the default character set of the X windows manager. In this case, the character set is probably US ASCII which is essentially a 7 bit character set and hence is unable to display characters beyond 128.
You can change your default character set to an 8 bit character set to eliminate this problem. To find the current character set, check the setting of the LANG environment variable. This can be done using the following command:
The setting of LANG may be changed to any 8 bit character set such as 'en_US' to activate the display of characters from 128 to 255. The following command may be used to set LANG to en_US:
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