Css class list not working in chrome

Dec 6, 2012 at 3:50 PM

I need to customize  the Css classes drop down  comes with "dnnWerk.RadEditorProvider"s Text Editor with some of my classes.

and added classes tag to the "Tools.xml" file and added the css classes I need to show in css class drop down.
Everything worked fine in Firefox.
But i'm unable to see any of the classes i have added in Chrome ans Safari. 
Now i have spend few days to figure out what has went wrong and still no clue
Please help me to resolve this issue..