go to settings:sounds and display: orientation...check or uncheck the box to change direction of screen
Unless the keyboard is open, the home screen does not rotate.
I have checked and double checked those preferences
You do realize that the default ROM in the Droid does not do 360 degree rotation, correct? It will only go into landscape mode when the "top" of the phone is on the "left" and the bottom is on the right...
Are you possibly trying to rotate the phone the other direction?
If you download a game that uses the accelerometer (Steamy Windows is a good one to try), or Google Sky Maps, does the phone indicate that the accelerometer works with other apps? It's possible you have a faulty accelerometer in the phone.
Below is part of a thread on the issue. Seems that Motorola decided not to let the homescreen rotate unless slider open, or in dock. The entry below is from Matt, the Forums Manager. You can try using Home++ or PandaHome too. https://supportforums.motorola.com/thread/16334?start=0&tstart=0
DROID : Auto-Landscape on Home Screen Hello again. Time to repeat the basics. This thread is simply too long for anyone to keep track of what's what.... unkilbeeg had it right. The agent response about a this being a bug that will be fixed on Dec. 11 is not credible. Any date you have heard about when a software update might be released and what it contains is pure speculation, with two exceptions. I have previously posted that the issue with an echo and inconsistent camera autofocus will be corrected in the first update. The current rotation scheme is not a bug, but a decision. The fact that some people saw it work differently for a few days when new is a regretable mystery. We are aware that many owners on this thread would prefer a full rotation capability. I will leave it to you to determine why the device rotates to portrait during a phone call when in the navigation dock. (It is true that the navigation dock can rotate either way...) I'm wondering if I should lock this thread and simply start a new one with the basic facts established up front? That way we can -- if we wish -- continue this conversation without having to take an undergraduate course in auto-landscape thread history before making a comment. As it is, half the comments are going to explain why the other half have been previously made and possibly debunked.