Vista RC1 (Release Candidate 1) update failure

I was trying to update my copy of Vista Beta 2 to the newly released Release
Candidate 1 using the the DVD I was sent, the update went ok for awhile then
about the last 90% or so it restarted. Upon finishing the restart the new
Vista RC1 loading screen came up (The one with the green progress bar and the
black background) then just after that a blue screen came up full of text and
at the bottom I made out the line about it creating a dump file for some
reason, but thats all I could make out since the screen was there and gone in
2 seconds (too quick to take a picture with my digital camera). Then it
restarts, and does it again..... endlessly. I used the memory tester program
thats on the Vista RC1 DVD, but it passes all the tests. I'm not sure whats
happened, or if theres a way around it.