resource cacheable firefox/opera

[Arthur Leigh Allen]

Hi folks,
 
I've implemented a RemoteImage class which extends the Image class.
The method setCacheable works with Internet Explorer but neither with Firefox 
nor with Opera.
If I load an image the first time, the correct image is shown.
When I try to load a different image (path is applied correctly), the old image 
is shown.

What I'm doing wrong?
I'm using wicket 1.3.5.
 
===
public
 classRemoteImage extendsImage {
    publicRemoteImage(String id, finalString path) {
        super(id);
        
        Resource resource = newWebResource() {
            publicIResourceStream getResourceStream() {
                IResourceStream stream = newFileResourceStream(newFile(path));
                returnstream;
            }
        };
 
        resource.setCacheable(false);
        setImageResource(resource);
    }
}
 
===
 
Would appreciate any help.
 
Thanks in advance
Leigh