Spells: DOT spell damage not showing up in text window

[mintmaster]

Have a Shaman now at LVL 14 and the DOT spells Sicken (LVL 5) and Tainted Breath (LVL 9) appear to cast normally and do damage but only the initial damage, when it lands, appears in the text window. There is no further text at each tic and no message when the DOT wears off. No idea if this affects other classes DOTs but so far it effects all of the Shaman dots on green server