I'm installing ubuntu server on an old 2003 dell computer that has a 2 GHz intel processor, 128 MB RAM and 40 GB HDD. I'm installing from a multiboot usb. Everything goes fine; however when I get to partitioning the hard drive, I get this (I'd post the image, but ask ubuntu doesn't let me yet):
[!!] Partition disks ??? ??? <Go back> <Continue>
Whether I click continue or go back, the screen becomes purple with a white line below and does nothing.
P.s.: The computer has windows xp installed and it run without any problem.