how to display these Ä & ë umulot's in cognos report output they are cmg wrong

[krishdw85]

T-JÄG
oët   Ä & ë

Ä & ë are displaying differently in cognos report output with diamond symbol inside ? mark

Would be helpful how to display these umulots in cognos report output. i want to display same as in DB side

[krishdw85]

Mast-Jägerm
Moët Hennessy

this ä & ë is displaying differently in cognos
MAST-J GERM after J it is playing diamond symbol with ? inside similar for Mo t

[krishdw85]

Somehow i tried like this but could not hae luck.... somehow unable to display ä & ë

CASE
WHEN
[Cust] like 'MAST%' THEN 'Mast-Jägermeister US, INC.'
WHEN
[Cust] like 'LVMH M%' THEN 'LVMH Moët Hennessy Louis Vuitton SA'
ELSE
[Cust]
END