I found this thread with a quick Google search and a couple times they refer to startupmanager. I've never used it but Download Squad has a write up on it here.
Startup Manager, or SUM provides an easier way to edit your GRUB menu. You can find SUM in the Synaptic package manager or by typing sudo apt-get install startupmanager into a terminal window.
Once it's installed, you can access Startup Manager from the System -> Administration menu. The utility lets you change the default operating system, adjust the screen resolution of the GRUB menu, and even alter the background and text colors. You can adjust the countdown timer, set a password, or alter a number of other settings. And there's fairly little risk of messing up your boot menu beyond all repair.
Prior to the current version of grub it was quite simple to update a config file and I used to do that. You can still update it in a similar way but it is a bit more convoluted.
Hope this is helpful.