Help Updating to 1.11.1!

Nov 12, 2011
So I'm trying to update my Droid 1 to 1.11.1 but whenever it reboots to install it a weird thing happens. Fist it just stays on the Motorola boot symbol for about five minutes, then the screen goes black, then it restarts normally and the update isn't installed. This also happened when I tried to use rom manager to restore a backed up rom. Help please!