I just installed Ubuntu from DVD, overwriting my previous Win7/Ubuntu dual boot.
Now, the first time booting Ubuntu, it is just a flashing white underscore in the top left.
I tried holding/pressing shift when booting to change to nomodeset but holding and tapping shift does nothing.
I also attempted putting the DVD in, changing nomodeset and then "Boot to local hard disk",
I got the same flashing white underscore again. Any assistance would be greatly appreciated, thanks!