sabayon disks wont boot

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http://www.linuxquestions.org – Hi Bought a live dvd from linux shop, it downloaded the files, got to the start menu but when i hit start sabayon just got a black screen. Emailed Linux shop who kindly sent me another disk. same thing happened, Dowmloaded my own ISO but just black screen again. Desktop PC 2.6 GHz dual core. 4GB ram, Nvidia quadro NVS 290 dual graphics sata 320 HDD running Win 7, plus Win 8.1 beta and Mint on virtual machines. 128GB SSD dual booting win 7 & Ubuntu 13.04 64 bit I was trying to run the live dvd on this ssd drive. No idea what the problem is so can anyone help please thanks (HowTos)