I have an old PC running Windows XP that I'm using in a photoshop just to show some presentations made with iPhoto (.mov files).
For running those I've uploaded Quicktime but I'm having a strange situation.
Athough I don't have any screensaver, even configuring the "Loop" mode in quicktime, after sometime the screen becomes blank. To restart the show I need to move the mouse (at it is in "energy saver" mode).
Can you help me to understand why this is happening ?