I am using n900 and i just got into this problem recently.. my battry drains out really really fast.. it suddenly started doing this.. i have this cpu mem applet which shows the cpu usage stats.. the cpu bar normally is high.. or red as there is some application running at the background.. how can i know which app is running in the background.. i tried figuring out but it didnt help.. i couldnt find anything.. can anyone help with this.. can i stop the unwanted applications from runing sumhow?