So, its all original problem which happens even in sasc version and it happens and on os4, and on morphos (and i assume on AROS as well?)
Reproduce is very easy:
-- found any place where you can tick mark on/off. For example settings/environment/copy/.
-- mark/unmark Datestamp few times and see, how "Datestamp" word will be start to be bolder and bolder with every mark/unmark.
It happens of course not only in environment (so configopus.module), but let's say, in diskcopy.module (user menu/diskcopy), and in all other places.