Dell XPS M1330 HDD problems

Hi all,

Have just replaced my old HDD with new Seagate ST9500420AS 500gb HDD all was well when reinstalling, apart from windows updates whch hanged several times but after a very long while updated. Came back to Laptop last night and have had these messages...

win/systems/config/system

Status 0xc00000e9

Win failed to load system reg files missing or corrupt

Ran diagnostics and had this...

Error Code 0146

Msg: error code 2000-0146

Msg: Unit 1: Dst log contains previous errors

Tried reinstalling supplied vista dvd but took me back to the top error. Have pressed f12 to boot from hdd got to the language options page then pressed next came across the choose system to log drivers from box (i think it was last night) nothing in box. Cant be my new drive surely as ive just bought it...culd it be a knackered motherboard hdd connector? if so as its 5 years old should i cut my losses and just buy a new one. Any help much appreciated.