[FreeNX-kNX] Strange mouse pointer and mouse pointer artifacts (nxclient->freenx->[x11vnc|krfb])

[Rupert Schlick]

Accessing an already running X-Session with nxclient via freenx and krfb
or x11vnc, the mousepointer reduces to a very small black circle with a
white border.

When moving around the mousepointer leaves "spots" where the underlying
desktop-content is not redrawn after the mouse pointer left.

Using the same nxclient and same freenx configuration to access a new
kde-session works perfectly. Krdc with krfb also works.

Is this a known problem? Did anybody experience similar problems?

Versions: (nx from unofficial debian packages at kanotix.org
nx* 0.4.0.2-0alpha4
freenx 0.4.3-0a1
debian sarge

cheers

rupert