I installed Ubuntu 12.04 to dual boot with Windows 7 on an ACER netbook. The netbook boots to Ubuntu without a problem but freezes at login or right after. Nothing moves and nothing responds. I have to shut down the computer to restart it. Any suggests as to how to correct the problem?
On some aspire netbooks you need to enable you need to turn on network boot in the BOIS. See more here: https://help.ubuntu.com/community/AspireOne722#Booting_USB_media.