Resource not registered : OrderingListButtonGradient - HELP

[wluque]

org.ajax4jsf.resource.ResourceNotFoundException: Resource not registered : org.richfaces.renderkit.html.gradientimages.OrderingListButtonGradient

Hi , I have this error when selecting a item in the control listShuttle ,using richfaces 3.1.4 library .
I don´t understand what happend.

All references in application.xml and manifiest.mf are :

richfaces-api-3.1.4.GA.jar
richfaces-impl-3.1.4.GA.jar
richfaces-ui-3.1.4.GA.jar

Please Help me !
Thanks a lot.

[sergeysmirnov]

Browser cache.
Press Ctrl-F5 once

[wluque]

ok , I clean the cache in my web browser and work fine !!!