Vista and Boot-up

Hey guys i installed Windows Vista. BIE January 2009 version to be precise x86.
and the installation went fine. although it did ask me for serial key. i just chose not to put in that time and clicked next.
as per the .nfo i put no passwork in.
and the installation completed successfully and vista loaded.

after about 1min. it turned off, and the computer restarted. but i wasnt able to boot into Windows Vista.
doesnt go to any vista screen. or the screen where the small bar the bottom loads.
it just goes to the bootscreen, goes past that to the Verifying DMI pool data screen, and then to a screen which ive never seen while on xp that says at the top "booting GRDLR" (or something like that.)

i ahve a gigabyte ga-73pvm-s2h.
and a 32bit processor. so x86 is the right version.
please help me


ps. i dont mind using a different version of Vista and reinstalling etc. Im open to suggestions.