Touche!

Its oracle 9.2.0.3 (and 9.2.0.4, another database displays the same sysmptons) on Compaq Tru64.

I can't tell if that metalink script is a pile of crap, and whether when looking at lastactivity through OEM is using the same mechanism. We've only noticied this since the clock change at the weekend, although the clock on the server was not changed.