Hi, I have had my N900 for a few months now and have been happy with the battery life in general, but sometimes it seems to drain much faster for no apparent reason. I noticed that the quicker drain happened when I used the pdf reader app in the phone, even after I turned off the app itself. Has anyone else noticed this? The batterygraph also shows a cpu usage of around 5 to 10 percent of the total graph area, with the battery draining at more than 3 percent per hour. During this time I did not use the phone for anything else. Can someone add anything to this? Thanks