Black screen booting a live dvd

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http://askubuntu.com – I am running Mint 12 x64 on a new ZaReason Verix laptop and get a black screen when I try to boot a live dvd. I like to check out other distros and know my discs are good so it has to be something else. There is a line in /etc/default/grub that makes me wonder if it is the issue: GRUB_CMDLINE_LINUX_DEFAULT="nomodeset blacklist.nouveau=1 quiet splash" If I change it to "quiet splash nomodeset" will that allow me to boot. My graphics card is an Nvidia Gtx 570m [which is phenomenal with compiz by the way]. Do I even need the nouveau? Any input would be appreciated. I have never had an issu (HowTos)