Vista RTM and CPU Usage

Is anyone using GoDiagram on Windows Vista RTM?

I have not found anything in the 2.5 documentation (other than with regards the setup) that states it is more compatible with Windows Vista, but always has 100% CPU usage when the mouse is over a GoDiagram control.

Will an upgrade fix this?
Is it a known bug?

I haven’t installed Vista RTM yet, but I have been running earlier versions of Vista for quite a while (I’m using RC2 now), and have never seen that kind of behavior from any version of GoDiagram.
I just now tried out Demo1.exe from the 2.4.1 kit, and everything seems fine. TaskManager often shows either 0% or a few %, the latter presumably because of the overhead of updating the TaskManager itself.