Hi,
if you have an install disk then try booting from it and running a repair once you get to the install page.
Also when a system blue screens, settings permitting, a dump file will be created and stored in the main windows folder. Look for a folder marked minidump if no dump files are present then you will have to change your settings (I think you can do this under safe mode)
Open the run application.
Type sysdm.cpl in the run box and click ok. (your looking for system properties)
Look across the top of the system properties box for 'Advanced' and click that.
Look for 'Startup and Recovery' near the bottom and click 'settings'.
Near the bottom you'll see a drop down menu under the heading 'write...