Using Seam with ICEfaces, a standard Seam feature does not work any more.
By using the following code, a drop down is displayed and filled with a list.
If ICEfaces is activated, the current selection supported by #{subcategoryEditor.instance.category} is not set as selected, the first value of the category list is selected instead:

                        <h:selectOneMenu id="#{data_messages['category']}" value="#{subcategoryEditor.instance.category}" required="true"
converter="#{categoryFinder.categoryConverter}">
<s:selectItems value="#{categories.resultList}" var="category" label="#{category.description}" noSelectionLabel="Please Select..." hideNoSelectionLabel="true" />
                        </h:selectOneMenu>

Viewing HTML, the "selected" attribute of <item selected="selected" ...> is missing.
When I disable ICEfaces, the above code is working and setting my current category.

I tried ICEfaces 1.6DR#2 + Seam 1.2.0 Patch 1 and then updated to 1.6DR#4 + Seam 1.2.1 without success.