VM screen resolution not supported?

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http://unix.stackexchange.com – Every time i attempt installing ubuntu on my VM it goes flawlessly until the initial start up of the OS, i cannot seem to fit the machine inside my screen resolution. i installed a pre-made VM for an open source project and the resolution was fine, everything was scaled and actually a full screen. Once i updated to the newest version of ubuntu however my resolution became a small little square with a whole ton of black around it in 'fullscreen' mode, i looked at the resolution option in system but it doesn't seem to support my computers resolution, is there any way for me to get the real (HowTos)