[Kwintv] Green bar on the right of the screen with new 0.8.4

[yf h2]

I just updated from 0.8.0 to 0.8.4 on my gentoo box.
Now there is a green bar on the right part of the screen (say, 10 % of the 
image width)

Versions:
Kdetv: 0.8.4
KDE: 3.3.2
Kernel: Gentoo-dev-sources 2.6.9-r1
X Server: XFree86-4.3.0

Thx for any clues