On occasion when I start up my Macbook, it will be in a really low resolution (looks like 800x600). When I go into the display setting, it says that it is set at 1280x800, even though it is clearly not. So I will choose a different resolution, then set it back to 1280x800, and it will go back to normal. It is odd because it happens randomly, and not too often. I was not using any Mini-DVI adapters either.
Any ideas what is happening here?