After a recent intrepid update, OUTLOOK.EXE will just spin at 100% CPU sometimes. I think I've noticed a pattern; the spinning seems to start whenever I get a popup notification for a meeting or appointment. If I dismiss the notification, then restart outlook, everything works as normal again.
These are the updates I did which triggered this behavior:
cdbs (0.4.52ubuntu7) to 0.4.52ubuntu9~intrepid1
consolekit (0.2.10-1ubuntu9) to 0.2.10-1ubuntu10
dolphin (4:4.1.3-0ubuntu1~intrepid1) to 4:4.1.4-0ubuntu1~intrepid2
dpkg (1.14.20ubuntu6) to 1.14.20ubuntu6.1
dpkg-dev (1.14.20ubuntu6) to 1.14.20ubuntu6.1
gvfs (1.0.2-0ubuntu1) to 1.0.2-0ubuntu2
gvfs-backends (1.0.2-0ubuntu1) to 1.0.2-0ubuntu2
gvfs-bin (1.0.2-0ubuntu1) to 1.0.2-0ubuntu2
gvfs-fuse (1.0.2-0ubuntu1) to 1.0.2-0ubuntu2
hal-info (20081124-0ubuntu1~intrepid) to 20090128-0ubuntu1~intrepid2
kde-icons-oxygen (4:4.1.3-0ubuntu1~intrepid1) to 4:4.1.4-0ubuntu1~intrepid1
kde-window-manager (4:4.1.3-0ubuntu1~intrepid1) to 4:4.1.4-0ubuntu1~intrepid3
kdebase-bin (4:4.1.3-0ubuntu1~intrepid1) to 4:4.1.4-0ubuntu1~intrepid2
kdebase-data (4:4.1.3-0ubuntu1~intrepid1) to 4:4.1.4-0ubuntu1~intrepid2
kdebase-runtime (4:4.1.3-0ubuntu1~intrepid1) to 4:4.1.4-0ubuntu1~intrepid1
kdebase-runtime-bin-kde4 (4:4.1.3-0ubuntu1~intrepid1) to 4:4.1.4-0ubuntu1~intrepid1
kdebase-runtime-data (4:4.1.3-0ubuntu1~intrepid1) to 4:4.1.4-0ubuntu1~intrepid1
kdebase-runtime-data-common (4:4.1.3-0ubuntu1~intrepid1) to 4:4.1.4-0ubuntu1~intrepid1
kdebase-workspace-data (4:4.1.3-0ubuntu1~intrepid1) to 4:4.1.4-0ubuntu1~intrepid3
kdebase-workspace-libs4+5 (4:4.1.3-0ubuntu1~intrepid1) to 4:4.1.4-0ubuntu1~intrepid3
kdelibs-bin (4:4.1.3-0ubuntu1~intrepid4) to 4:4.1.4-0ubuntu1~intrepid1
kdelibs5 (4:4.1.3-0ubuntu1~intrepid4) to 4:4.1.4-0ubuntu1~intrepid1
kdelibs5-data (4:4.1.3-0ubuntu1~intrepid4) to 4:4.1.4-0ubuntu1~intrepid1
kfind (4:4.1.3-0ubuntu1~intrepid1) to 4:4.1.4-0ubuntu1~intrepid2
khelpcenter4 (4:4.1.3-0ubuntu1~intrepid1) to 4:4.1.4-0ubuntu1~intrepid1
kompare (4:4.1.3-0ubuntu1~intrepid1) to 4:4.1.4-0ubuntu1~intrepid1
kwalletmanager (4:4.1.3-0ubuntu1~intrepid1) to 4:4.1.4-0ubuntu1~intrepid2
kwin (4:4.1.3-0ubuntu1~intrepid1) to 4:4.1.4-0ubuntu1~intrepid3
kxsldbg-kde4 (4:4.1.3-0ubuntu1~intrepid1) to 4:4.1.4-0ubuntu1~intrepid1
libck-connector0 (0.2.10-1ubuntu9) to 0.2.10-1ubuntu10
libgvfscommon0 (1.0.2-0ubuntu1) to 1.0.2-0ubuntu2
libkdecorations4 (4:4.1.3-0ubuntu1~intrepid1) to 4:4.1.4-0ubuntu1~intrepid3
libkonq5 (4:4.1.3-0ubuntu1~intrepid1) to 4:4.1.4-0ubuntu1~intrepid2
libkonq5-templates (4:4.1.3-0ubuntu1~intrepid1) to 4:4.1.4-0ubuntu1~intrepid2
libkwineffects1 (4:4.1.3-0ubuntu1~intrepid1) to 4:4.1.4-0ubuntu1~intrepid3
libpam-ck-connector (0.2.10-1ubuntu9) to 0.2.10-1ubuntu10
libplasma2 (4:4.1.3-0ubuntu1~intrepid1) to 4:4.1.4-0ubuntu1~intrepid3
libpq-dev (8.3.5-0ubuntu8.10) to 8.3.6-0ubuntu8.10
libpq5 (8.3.5-0ubuntu8.10) to 8.3.6-0ubuntu8.10
rhythmbox (0.11.6svn20081008-0ubuntu4.2) to 0.11.6svn20081008-0ubuntu4.3