I have been using Ubuntu and other distro's for years, but I have never had such difficulty trying to install it for a friend. I am trying to install Ubuntu 12.04 from Live USB to an HP Mini 210-1036VU netbook but I am getting faulty medium errors. I have tried another USB drive, alternate install, using USB creator and Unetbootin from two different computers and different release image versions (12.04.01, 12.04.02 etc) & all to the same end! On the HP Mini the disk check boot mode gives one error. It's clean on my own laptop and image checksums are matched. Should I try booting from an external disk drive? Is there possibly some discreet limitation to booting from a USB drive on this computer? Hardware drivers? I haven't found the same problem in forums yet. I'll try to provide more data on request.
I've been just as frustrated as you before, and as it turns out, I had failed to check BIOS.
You didn't mention you've checked BIOS, so maybe checked that?
I hope this was useful :-)