Evening All, I started this thread with a question about exitting apps and finding them still running with task manager. I understand from other threads that the forum suggested that this is not a problem, and is the way the OS is meant to work. However, I have an app (or maybe two) that I suspect are using 3G data when I've exited them. I have on in particular (called PlaneFinder) that used 55Mb of data the other day. I was only actually running it for a few minutes, so my suspicion is that it kept going. I exited using the 'back' arrow at the bottom of the screen (on my Desire HD, next to 'Menu'). Is this conceivable? Possibly a badly written app? Its not the most reliable app in the world, has to be forced to stop fairly often.. Cheers, Al.