Scrolling is very slow and unsmooth. CPU Usage jumps to 100% when scrolling. Did not have this problem with Thunderbird 1.07-r3 und before. Hardware is a Apple iBook G4 1,33 Ghz. ibookg4 ~ # emerge -pv mozilla-thunderbird These are the packages that I would merge, in order: Calculating dependencies ...done! [ebuild R ] mail-client/mozilla-thunderbird-1.5-r2 +crypt -debug -gnome -ipv6 +ldap -xinerama -xprint 0 kB ibookg4 ~ # emerge --info Portage 2.0.54 (default-linux/ppc/2005.1/ppc/G4, gcc-3.4.5, glibc-2.3.5-r3, 2.6.15 ppc) ================================================================= System uname: 2.6.15 ppc 7447A, altivec supported Gentoo Base System version 1.6.14 distcc 2.18.3 powerpc-unknown-linux-gnu (protocols 1 and 2) (default port 3632) [enabled] ccache version 2.3 [enabled] dev-lang/python: 2.3.5-r2, 2.4.2 sys-apps/sandbox: 1.2.12 sys-devel/autoconf: 2.13, 2.59-r7 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r1 sys-devel/binutils: 2.16.1 sys-devel/libtool: 1.5.22 virtual/os-headers: 2.6.11-r2 ACCEPT_KEYWORDS="ppc" AUTOCLEAN="yes" CBUILD="powerpc-unknown-linux-gnu" CFLAGS="-O2 -mcpu=7450 -maltivec -mabi=altivec -mpowerpc-gfxopt" CHOST="powerpc-unknown-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3.4/env /usr/kde/3.4/share/config /usr/kde/3.4/shutdown /usr/kde/3/share/config /usr/lib/X11/xkb /usr/share/config /usr/share/texmf/dvipdfm/config/ /usr/share/texmf/dvips/config/ /usr/share/texmf/tex/generic/config/ /usr/share/texmf/tex/platex/config/ /usr/share/texmf/xdvi/ /var/qmail/alias /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-O2 -mcpu=7450 -maltivec -mabi=altivec -mpowerpc-gfxopt" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig ccache distcc distlocks sandbox sfperms strict" GENTOO_MIRRORS="ftp://pandemonium.tiscali.de/pub/gentoo/ ftp://213.186.33.38/gentoo-distfiles/ ftp://gentoo.inode.at/source/ ftp://ftp.nyx.hu/gentoo ftp://213.186.33.37/gentoo-distfiles/ ftp://linux.rz.ruhr-uni-bochum.de/gentoo-mirror/ ftp://sunsite.informatik.rwth-aachen.de/pub/Linux/gentoo ftp://ftp-stud.fht-esslingen.de/pub/Mirrors/gentoo/ ftp://ftp.wh2.tu-dresden.de/pub/mirrors/gentoo ftp://ftp.heanet.ie/pub/gentoo/" LC_ALL="de_DE.UTF-8" LINGUAS="de en" MAKEOPTS="-j3" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="ppc X alsa altivec apache2 audiofile bash-completion berkdb bitmap-fonts bluetooth bonobo bzip2 cdparanoia cdr crypt cups curl divx4linux dri dvd eds emboss encode esd exif expat fam fbcon ffmpeg flac flash gd gif gimp glut gmp gpm gstreamer gtk gtk2 guile idn imagemagick imlib java jpeg kde lcms ldap libwww mad mng motif mp3 mpeg mplayer mysql ncurses nls ogg oggvorbis opengl oss pam pcre pdflib perl php png python qt quicktime radeon readline recode samba scanner sdl spell ssl tcltk tcpd tetex tiff truetype truetype-fonts type1-fonts udev unicode usb utf8 vorbis wifi xml xml2 xmms xv zlib linguas_de linguas_en userland_GNU kernel_linux elibc_glibc" Unset: ASFLAGS, CTARGET, LANG, LDFLAGS
I can't reproduce this on my PB G4 1.67. Are you sure that you have X setup correctly and that you're not using fbdev?
Works fine for me as well on G4 ibook.
