[ubuntu] Just got laptop & already messed it up... grub>

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http://ubuntuforums.org – I just got my Dell Vostro 2520 with Ubuntu preloaded. I know nothing about operating systems. I wanted to try something different. Now my husband is pissed. I forgot my password...or did I set one up? Anyway, I was trying to reset it. I ended up with a black screen like dos. It had a place to set system, admin, and hdd passwords. I did this but I can't get out of this black screen hell. I have a message about minimal BASH line editing and a grub> prompt. My husband is on our other computer burning a new copy of the Ubuntu program. Please tell me that there is something simple that I hav (Hardware)