Hi, we have a Win7 with Media Center that is connected to a large screen. It displays a corporate slideshow near the coffeemachine.

When the computer is started it automatically logs in and starts the slideshow.

The problem is that on irregular time intervals (once a day, some days not) the slideshow stops and it switches to the login screen and shows which user is logged on.

We don't know why this is happening. We first thought someone on the network was trying to open RDC connection to the machine, because it is the same sympthon like when you take over a machine by RDC with a different user, but nobody is doing that.

Screensaver is disabled, energy settings "always on"

Anybody ideas why this is happening?