I just installed WordPress today, Mon, Feb 4, 2013, and was going through the "Customize Your Site" options. I've not yet selected any of the themes; nor have I added any plug-ins. I'm completely bare bones at this point. I was able to successfully change my site title and tagline. But when i selected a 1.5 MB image I uploaded for my background and hit Save & Publish, the session expired. In order to STAY logged back in once this happens (which has been over a dozen times now), I have to completely close whichever browser I'm using (this happens on both IE & Firefox). I then don't know if I need to, but I clear all my cache, cookies, hitory, as have many other users. I figured there was a problem with the image i was trying to use for the background, so i removed it . But the same session expiration occurs when i use WordPress' own background colors! My under-development site is http://www.goldendaleevents.com. It's pretty dismally blah looking right now as a result.
I'm really disappointed. I've heard so many good things about WordPress and have spent hours studying tutorials, so i could be up and running. But I can't even get out of the starting gate! Please help!