In Windows Media Player if you go to tools, select options and then click on the performance tab. On the performance page there will be a slider labled video acceleration. Reduce the acceleration to none, click ok and then close down media player. Next open the file you want to take a still from, press ALT and the PrintScrn key. Next open up paint or another program and go to edit and select paste. When your done taking screen captures change the settings back to how they were.