Hey everyone, I am a somewhat newbie to linux, running dual boot with Windows 7 on my Samsung netbook.

I started by installing ubuntu 10.10 (Maverick Meerkat) and everything went fine; great even (runs much more smoothly than Windows 7 on my netbook). After a while I upgraded to 11.04 (Natty Narwhal) but I had to run it on a low-graphics session every time, if not it wouldn't leave the purple ubuntu screen.
I just now upgraded to 11.10 (Oneiric Ocelot), and I cannot get past the purple screen, and I have not found a way to leave grub (I haven't found a way to at least run it in low-graphics mode).

Any help / codes? Thank you!