Ubuntu 12.04 installer and gparted fo not detect the existing windows partitions

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http://askubuntu.com – I just bought a new laptop that comes with Windows 7 preinstalled and I want to install Ubuntu alongside with it. The system came with 5 partitions: System partition Unknown partition NTFS partition (the one with windows) NTFS partition (to be used for data) A recovery partition I had removed the NTFS data partition and shrinked the windows partition to make room for Ubuntu as it will be my main OS. The problem is that when I boot with the live CD, the installation program does not detect any of the partitions and tries to use the whole disk (/dev/sda) to install Ubuntu. When I start th (HowTos)