.xsession-errors from xfsettingsd - important?

[cl at isbd.net]

I've got errors at the end of my .xsession-errors as follows:-

    (xfsettingsd:3489): xfsettingsd-WARNING **: Failed to get the _NET_NUMBER_OF_DESKTOPS property.
    ** Message: applet now removed from the notification area
    ** Message: using fallback from indicator to GtkStatusIcon
    ** Message: applet now embedded in the notification area

Are they significant and can I do anything about them?

-- 
Chris Green