I add some issues updating from 3.0 to 3.5:
1) With a (almost) complete installation of KDE on 3.0, very similar problems
to those mentioned in the above post (3.5-RC) are observed (no "kubuntu
desktop" package implied in this case, just KDE base and others). Among other
things it changes in Gnome the default web-browser to Konqueror and the same
memory usage issues already mentioned. Again, it seems to be solved
uninstalling everything related to KDE. After that, installing Kdenlive and
suggested packages for Kdenlive seems to cause no problems. Perhaps it should
be necessary to find out which KDE package might cause problems in 3.5 when
you install KDE along with Gnome. Besides, as far as I remember, KDE seems to
have issues and not work properly also on last versions of Ubuntu (standard
Gnome version), so it might be a problem deriving from Ubuntu.
2) There is some problem regarding "nouveau" driver. Along system update it
returned some issue related to being unable to update and/or configure
"nouveau-kernel-sources". The package is installed according to Synaptic and
when you try to uninstall it (are sources necessary in order to run the
driver?), Synaptic tells you it will also uninstall
"xserver-xorg-video-nouveau". The thing is that additionally to some other
issues regarding dualhead not observed on 3.0, every time you install some
package (not related apparently to nouveau), Synaptic returns a message
concerning a failure to configure "nouveau-kernel-sources".
