I have been trying to install debian wheezy on my desktop with no sucess. During the install when I get to the grub screen it says if I see my operating systems listed to go ahead with grub. During this screen it only lists windows vista(loader)(this is actually windows 7) but no debian. I succesfully installed debian on my laptop no problem with the same disk, my laptop only runs debian in comparison though.
After the install and my computer loads past my BIOS I get a black screen with a blinking cursor in the top left corner. I believe that debian has installed properly but that grub did not.