I have two hard drives installed on my computer. A 40 GB (slave) as well as 20 GB (master) considerately. My 40 gig has windows XP plus the 20 gig has Ubuntu 9.04.When I boot my computer up, the grub loader shows windows xp but when i choose it the menu disappears after that reappears as well as doesn’t load xp but i can boot Ubuntu just well. if i disconnect my 20 gig hard drive i can boot xp fine. Not sure if i installed Ubuntu properly as i am a 1st time user. Please help me.