With 4.0.4, this was working. Since upgrading host and guest, cut/paste has stopped working. This is with Windows XP host and Gentoo guest and the following installed: app-emulation/virtual-guest-additions-4.0.6 x11-drivers/xf86-input-virtualbox-4.0.6 x11-drivers/xf86-video-virtualbox-4.0.6 Reproducible: Always Steps to Reproduce: 1.See problem description 2. 3. Output from emerge --info: Portage 2.1.9.42 (default/linux/amd64/10.0, gcc-4.4.5, libc-0-r0, 2.6.37-gentoo-r4 x86_64) ================================================================= System uname: Linux-2.6.37-gentoo-r4-x86_64-Intel-R-_Core-TM-_i5_CPU_M_540_@_2.53GHz-with-gentoo-2.0.2 Timestamp of tree: Tue, 26 Apr 2011 10:45:01 +0000 app-shells/bash: 4.1_p9 dev-java/java-config: 2.1.11-r3 dev-lang/python: 2.6.6-r2, 2.7.1-r1, 3.1.3-r1 dev-util/cmake: 2.8.4 sys-apps/baselayout: 2.0.2 sys-apps/openrc: 0.8.2 sys-apps/sandbox: 2.4 sys-devel/autoconf: 2.13, 2.65-r1 sys-devel/automake: 1.4_p6-r1, 1.8.5-r4, 1.9.6-r3, 1.11.1 sys-devel/binutils: 2.20.1-r1 sys-devel/gcc: 4.4.5 sys-devel/gcc-config: 1.4.1 sys-devel/libtool: 2.2.10 sys-devel/make: 3.81-r2 sys-kernel/linux-headers: 2.6.36.1 virtual/os-headers: 0 ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="*" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=native -O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt /usr/share/openvpn/easy-rsa /var/lib/hsqldb" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/eselect/postgresql /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5.3/ext-active/ /etc/php/cgi-php5.3/ext-active/ /etc/php/cli-php5.3/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c" CXXFLAGS="-march=native -O2 -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="assume-digests binpkg-logs distlocks fixlafiles fixpackages news parallel-fetch protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch" FFLAGS="" GENTOO_MIRRORS="http://mirror.mcs.anl.gov/pub/gentoo/ http://gentoo.chem.wisc.edu/gentoo/ http://mirrors.cs.wmich.edu/gentoo http://www.cyberuse.com/gentoo/ http://mirror.datapipe.net/gentoo http://gentoo.mirrors.easynews.com/linux/gentoo/ http://chi-10g-1-mirror.fastsoft.net/pub/linux/gentoo/gentoo-distfiles/ http://www.gtlib.gatech.edu/pub/gentoo http://gentoo.mirrors.hoobly.com/ http://distro.ibiblio.org/pub/linux/distributions/gentoo/ http://lug.mtu.edu/gentoo/ http://gentoo.netnitco.net http://gentoo.osuosl.org/ http://gentoo.mirrors.pair.com/ http://mirrors.rit.edu/gentoo/ http://mirror.iawnet.sandia.gov/gentoo/ http://gentoo.llarian.net/ http://gentoo.mirrors.tds.net/gentoo http://ftp.ucsb.edu/pub/mirrors/linux/gentoo/ http://mirror.lug.udel.edu/pub/gentoo/ http://mirror.its.uidaho.edu/pub/gentoo/ http://gentoo.cites.uiuc.edu/pub/gentoo/ http://gentoo.cs.uni.edu/ http://mirror.usu.edu/mirrors/gentoo/" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/var/lib/layman/pentoo" SYNC="rsync://rsync.us.gentoo.org/gentoo-portage" USE="X acl alsa amd64 apic berkdb bzip2 cdr cleartype clflush cli cmov consolekiti constant_tsc corefonts cracklib crypt cups cx8 cxx dbus de dri dvd fortran fpu fxsr gdbm gpm iconv ipv6 kde lahf_lm lm mca mce mmx modules monitor msr mtrr mudflap multilib ncurses nls nptl nptlonly nx openmp pae pam pat pcre perl pge phonon pni policykit pppd pse pse36 python qt3support qt4 readline rep_good sep session sse sse2 ssl ssse3 syscall sysfs tcpd truetype tsc type1 unicode up vme xorg zlib" ALSA_CARDS="hda-intel" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mmap_emul mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ubx" INPUT_DEVICES="virtualbox evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" PHP_TARGETS="php5-3" RUBY_TARGETS="ruby18" USERLAND="GNU" VIDEO_CARDS="virtualbox" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, LINGUAS, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
+*virtualbox-guest-additions-4.0.6-r1 (26 Apr 2011) + + 26 Apr 2011; Lars Wendler <polynomial-c@gentoo.org> + -virtualbox-guest-additions-4.0.6.ebuild, + +virtualbox-guest-additions-4.0.6-r1.ebuild: + Fixed installation of udev-rules into /lib/udev. Thanks to Willard Dawson who + reported this in bug #364997. + Sorry for this really stupid mistake from me. I wanted to change installation directory of the udev-rules files from /etc/udev/rules.d/ to /lib/udev/rules.d/ and didn't change all places in the ebuild where the path is given. Should be fixed with -r1. Please test and if it still doesn't work, repoen this bug.