Hello, I use your wonderful smooth slider (latest version on wordpress 3.3.1).
My website uses 2 languages, one RTL (hebrew) and one LTR (english).
Everything worked great when there was one language (hebrew) and the default language in the system was Hebrew. But when I added a second language, I had to change the default language to English (inside wp-config.php). After that change, the display is correct only in the English pages of my website.
Note 1: changing the language did not change the dir attribute of the HTML element. On hebrew pages it is still defined as ltr. I use php code to set it to rtl just above the end element of the head tag.
Note 2: I use two smooth sliders after checking the relevant checkbox and creating one also with English posts (same settings for both obviously).