Migrate to Karmic Koala

Just finished all the upgrading from Jaunty to Karmic Koala, and all went without a problem. Though don't know if it is because the new version gets a better error reporting, I seem to get more "crashes" from application before. Other than that, things seems just work. I even took the risk of converting the file system from EXT3 to EXT4 and upgrade GRUB to GRUB2