HDMI connect PC to TV

[overthehill]

 
  Hi I'm hoping that someone can help with a problem that I'm having watching programs on my TV.
While I'm watching a movie(for example) my theme page or photos from my PC suddenly appear full screen. When I first boot up things are great for perhaps 20-45 mins. or so then this happens. It's then a pain getting back to the movie and once back, I never know when this problem will reoccur. I'm using a wireless mouse and a wireless keyboard to control the TV which is in an adjacent room from my PC.

Any help with this would be greatly appreciated. overthehill
 
  My PC  Acer Aspire ME600
 
  Intel I-5-3350P @ 3.10 GHz

  Video  AMD Radeon HD 7300 Series
 
  TV  HD 47" LG

[patio]

Turn off any screen saver apps and/or Themes.

[overthehill]

Thanks patio. I'm not that accustomed to 8.1 . So what I ended up doing (prior to your response) was change the "power plan setting" from "balanced" (20 mins.) to never. I was able to watch TV last evening without any issues. Sure hope that this clears my problem. If not I"ll certainly dig deeper into your suggestions. Anyway thanks for responding. overthehill

[patio]

That'll probably do it there...