problem with the index page in Opera

[kobra8]

Hi ZC user, I have big problem with ZenCart index page

1. Whan in Opera scroll page http://kavanali.com/zencart/ it show strange white flashes in bottom or top, depending on where the visitor scrolls a page.
Whan I goo on every other page, whan scrolls, page show o.k.

2. In Opera, shop have strange dot in top left corner, regardless of which page I was. Please see picture 011

3. My domen kavanali.com wase had PR4 :) Buy suddenly my Indes page disappeared from Google search and Google index, now is PR0! I contacted Google and they say everything is fine, but when I type in the search 'kavanali' my site (page index) is not show. Other page of shop are indexed in the search and show.
please see picture 022



Can anyone help me to solve the mystery of the index?
I am sure that a problem with the code on the page Index but little help are welcome, thanks in advance.

Thanks