I Have done this before but I can't really remember how, I have XP installed on my master and Vista running of the slave, I had to boot configuation running fine but I had to reinstall XP due to issues which overwrote my boot config, I tried adding it to the boot.ini but It just sitts when accessing it, and i can't simply unplug one harddrive as my boot config was set to be on the primary harddrive, I know theres a way to add Vista again, if anyone knows how please tell me