Imageset Appearance Problem with Google Chrome Browser.

I'm using Google Chrome as my default browser, I noticed that the imageset of my style (Prosilver Special Edition) doesn't work well.
I'm using phpBB3 in Kurdish language with RTL styles, So I asked in a forum which supports phpBB in Kurdish (htttp://chawg.org/meko) if they know any information about the problem, they answered that Google Chrome will not display the imageset of any RTL style in phpBB3.

Instead of displaying the Imageset in (New topic, Reply, Forward, Locked and etc...) it displays the original text which included in the language file.
So, is there any solution?