[ubuntu] Upgraded to 11.10, several problems present themselves

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http://ubuntuforums.org – Seeing the support period about to end for 11.04, I made the jump to 11.10. Now having done so I'm finding several problems: 1) No GRUB menu. Just a blank purple screen as I wait for the login screen. Not an emergency, but I'd like the option of other modes/previous kernels should something go wrong in the future. 2) Reduced screen resolution. I run an nVidia 5600 card with 256 MB and a Dell E773c monitor. Right now the best I can manage is 1024 x 768 when under 11.04 it could manage 1280 x 960. It's a noticeable and aggravating difference. xrandr tells me that 1024 x 768 is now as (Hardware)