Once a week I re-start my Ubuntu 7.10 to boot into Windows XP to update my anti-virus, and update "FoxMarks" for my Bookmarks. To day, GRUB didn't come on to select Microsoft and I was stuck with a request of an operating system. I need help. I dont know what to do. I am using the Ubuutu Disc. How can I re-install GRUB throught the Disc. I appreciate all the help I can get. Much obliged in advance. Victor Kevorkian