[ubuntu] Installation lock before disk partitioning

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http://ubuntuforums.org – Two days lost doing trials. During a fresh installation starting from Ubuntu 12.04 (or Lubuntu 11.10) when the installer arrives to disk partitioning, it stops working and the waiting is endless. It's the same with usb pen or CD-ROM. i tried also with alternate cd but same result. Trying it in Live mode works flawless. Starting installation from Ubuntu 11.10 (or Lubuntu 11.04) the installer works well and the installation is finished without problems. Then i've upgraded until last versions (12.10) without problems. It is an HP Compaq nx6310 laptop with Celeron M 1,7 Ghz processor and 1 Gb (Hardware)