Just tried one of my Seam 2.2.0.GA apps under Chrome 5.0.307.11 (OS X) which has several selectOneMenu tags using selectItmes and noSelectionLabel, and it works fine. Your syntax above looks fine. Not sure what the issue is.
Thanks, Robert Morse, But I do not know the location of your application.
Anyway do anyone ever met this, and help me:). I think my usage of selectOneMenu is right, cause it's fine in IE.
Does anyone met such problem? please give me some clue....