Then don´t.
No one put a gun to your head and forced you to update.
(If someone did, then the overlay is not your biggest problem...)
You paided how much for XBMC?
How much do you pay for tech support?
XBMC is, and will be, a WIP (Work In Progress) and as such problems will arise from version to version.
Two fixes where given:
QUOTE
that overlay is ONLY used if you leave xbmc @ homescreen, fullscreen viz has different overlays, which you toggle with black & white
^^ = Start the viz from my music with the x button and then press the white and it goes away... (ONLY USE THE PM3 SKIN)
RocafellaSqualie´s fix also works for what you asked. He, nor we, can be mindreaders to what you want/need to other things that you write.