File dlg boxes default folders

All the following dlg boxes related with file operations (open or save) start from the folder in which the MuseScore executable resides rather than from the appropriate folder:

- Menu "File":
Save as (including first "Save" of a new score)
Save selection
Export
Export parts

- Menu "Style":
Load style
Save style
Save style as default

- Menu "Display":
Synthesizer => "Add" (a sound font)

- Menu "Plugins":
Plugin Creator => Open

This happens, since quite a long time, both under Win7 and under Ubuntu (oneiric). Am I the only one to experience this?

Thanks,

M.