Hello there, Just started to look at drivers. I am trying to boot the computer in debug mode. Just before it has initialized all processes it hangs. Norton is the main suspect. Anyone knows about this? Further; I am trying to set up a debug environment for PCI and MSVAD. In windbg helpfile there is a double message: You have to use two computers / you can do ?local? kernel debugging. Which is correct? Thanks, Bernt