[tymmy]

You mean fanart (artist slide show) in background and and visualization (projectM) in foreground.

That would be correct. I did note that on the now playing screen I only saw fanart, Go to the home screen and visualization was still there. Not sure what project m is. I was using milk drop as viz.
To be a little more accurate , I had toggled Alternative Music Viz layout on look at it noticed the viz gone toggled it off and the results with the viz where still present and would stay that way,

Hm, I'm using exact the setup I posted
Slideshow in back, and viz I'm forgeound on the alternative music layout on my openelec box and it works fine. Maby someone else can test this. But I will take a look tonight, when I'm home

I saw the Mike had fix the right list view so re downloaded and installed rev 6
Right list view was fine
And no Problem with slideshow and viz working together in alt view. Looks great

also all thanks for quick fixes.