Resolution stuck in 640x480 in grub, 11.04 and 12.04

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http://askubuntu.com – I have three operating systems on my machine, windows 7x64 and Ubuntu 11.10 and 12.04 both x64 as well. All three were running at full resolution for my monitor, as well as in the grub 1.99 boot screen. After booting into windows I rebooted my machine and found my grub resolution was suddenly 640x480. Booting into both versions of ubuntu I find myself stuck at that resolution as well. I made no driver changes recently, and hadn't even booted into the 11.10 build in a month or more. I've gone through both proprietary nvidia driver options for my card (geforce 9800GT) as well as the open source (HowTos)