HI
this is my forth post about Editing page layout in RTL format and cultures.i test this problem with most of RTL language .

1)download and install KenticoCMS 4.1
2)setup database and continue creating website using standard kentico templates.
3)after finishing previous step i stop created site and go to creating new site using wizard.
4)i give site name Pcorporate and coname too.
5)i set Farsi(one of RTL languages) as culture of site.
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6)finshing site creation.
7)from the development tab , UICultures section define Farsi as UI cultur name and Fa-ir as it's code name and click save.
8)sing out
9)i am select Farsi language and sign in to CMSDESK.
10)i am going to design web site using portal engine and Design tab.
11)i am right click on "Page Teplate" green box and from dropdon menu click on the "Edit Layout".(i can do this by clicking on the edit icon in the green box).

12)pop up menu open and now we can enter our html and design code in it.till now every thing is ok.

13)but if you try to scroll underlying page of this modal dialog you see that ModalDialog disapear and only thing that you see is gray screen.(if you close dialog and open it again you find that Modal Dialog moves to the right)

i provide u one exported site and one SWF file that show u the problem.

i hope u pay attention to it.

please Click Here to download.