[ubuntu] HDD problem

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http://ubuntuforums.org – First of all i had KDE 4 full monty installed on my pc but after using it for 3 days, and installing a lot of updates on it, it just couldn't start and a lot of errors appeared on the screen every time i tried to boot. I decided to reinstall my OS but i also wanted (and still want) to keep my /home partition. When i start installing KDE 4 full monty it says that i have a hardware problem (it can't find my HDD even thought my bios recognizes it), so i opened my pc and reattached (changed the slot) the cable that connects the HDD with the motherboard and tried installing KDE 4 full monty once ag (Hardware)