various problems with compiz

[Xavier Bestel <xavier.bestel@free.fr>]

Hi,

I'm using compiz on an r300 since a bit before it's in debian, and I
have some recurring problems I'd like to if they are fixable:
- xcreensaver doesn't work at all: even when I launch the settings
  and press "preview", I only have a black screen (GL or X11 hacks).
- totem-gstreamer can't play fullscreen if using Xv: the window
  seems to not be refreshed correctly, so it's not painted with the
  overlay color, so the video displays only partially or not at all.
- eog doesn't work well fullscreen (displays only partially, looks
  like the same problem as totem).
- evince and epiphany sometimes flicker a lot when fullscreen.

I tried toggling the "unredirect fullscreen windows" without much
succes. Now I'm a bit lost, and I'd like to know if these problems are
general to compiz or composited X11, or if it's just my setup.

Thanks,

	Xav