I installed ubuntu on an external drive to try it out. It has worked great and I've been impressed by it stability and polish. When I boot the laptop, I use grub to pick either ubuntu or windows xp to boot from. The problem I run into is when I take the laptop and the external hard drive is not connected, I get an Error 17 and can't boot into anything, as no operating systems appear to boot into. What I was hoping for originally was to let it boot into Windows XP when the hard drive was unplugged and into either ubuntu or windows when the hard drive was plugged in. Is this feasible and how would I go about doing it? If I can't do that, can I install ubuntu again with the external hard drive unplugged (from the CD) and partition my internal hard drive and will this straighten out grub or will I have to leave the external hard drive plugged in forever? I played a little with linspire (no comparison to ubuntu) but really understand little of working in terminal so please assume no knowledge on my part when answering. Thanks for all the help.