Greek character problem

Hi, I've this problem using BW 7.0:

When I try to load some data from a table, the system find a greek character (µ) and it stop the data loading.

The error's message is this:

"Record 982 :0UNIT : Data record 982 ('0CSQA0787 '): Version 'µM ' is not valid"

I've try to use the rskc transation and add the character inside the "Pemitted extra characters", but when I saved the character, it will become a normal M.

Where is the issue?

Thank a lot to everybody would help me, bye