I've downloaded Ubuntu 11.10 and tried to dualboot it with Windows 7, installation proccess went forward without problems, GRUB2 recognized my win 7 boot loader and everything looked fine! I wanted to boot into my fresh Ubuntu install but before the splash screen appeared a sold purple screen was shown with no text.
I waited about 10 mins but to no avail, then I restarted and it happened again, I went into kernel editing in GRUB and deleted thoese 2 words
quiet and another one which I forgot! I replaced it with
vesa and some other stuff but again it didn't work, I tried WUBI and this happened again.
The only way to run Ubuntu on my machine is inside a Virtual Machine which doesn't work as a solution for me because I don't want to test Ubuntu, i want to use it! Some say it's a problem with my GPU. My GPU is a Radeon HD 6950.