Anybody knows how to make visuals hide by default?

[Victor Tsaran]

In my various tests I've discovered that Voiceover visuals interfere 
with features needed by "visuals", meaning sighted people. It seems 
though that every time VO starts, visuals, such as VO frame,  are 
displayed on the screen. It is easy to verify because right after VO's 
start, you can hide them by pressing CTRL+OPTION+F11.
I went into VO pannel, disabled everything relevant I could think of, 
but visuals still come up every time I start VO.
Thoughts?
V