Cannot log in...

Hi there,

I have a problem with my Vista laptop (Vista Ultimate 32bit). Whenever I try
to log in I get an error that the user profile could not be found etc etc.

OK, normally this means corrupt profile, so just create a new profile ad
copy across. However, this is where I have the problem. I also get the error
when using the built in Admin user, and any other user I create, so I am
actually unable to get access to this!

Any ideas please, I really do not want to have to rebuild this laptop again
(4 times in the past week due to motherboard problems - now replaced.)

Thanks,
Sanj