I'm rooted, and installed the version of Gingerbread that was available to incredible users a few months ago. Now, my phone is asking me to update again. However, I plan on getting the Galaxy Nexus when it comes out, and I don't want to risk breaking my phone with the official upgrade. I have a "System update available" message in my Notification bar, and every time I unlock the phone it asks if I want to update. Is there any way, other than upgrading, to make those messages go away? I think the last time this happened with a FroYo upgrade there was a file I could modify, but I don't remember the details.