[Dx4win] Setting Callsign font to Bold when printing labels

[Jerry.Van]

In DX4WIN 7.01 (also 6.04) I am unable to permanently set the Callsign
font to Bold when printing labels.  I am using the Custom1 label name
accessed via File>Databases>Labels.  After selecting the Callsign font
area I can set the font from Regular to Bold and then exit via the OK's.
If I then re-open the Label database the Bold setting has been reverted
back to Regular and was not permanently saved.  During a label printing
session I can modify the Callsign font to Bold and all works well.
However, the Bold setting is not saved across printing sessions either.

Is there a method to permanently store the Callsign font Bold setting in
the label database?  I have tried editing the database (I assume it to
be dx4win.lab in the Save folder) with MS Word, WordPad, and Notepad but
it does not seem to be editable by these methods.

Any ideas?

Jerry  N8BM