setting display properties in Win7
Right-click in the desktop space, select the screen resolution, the display in the Address bar. Of course, you can also enter the display properties from the Control Panel.
Then select to enter the screen resolution, select the second monitor, keep the bottom default parameter settings, OK. The effect should look like the following illustration:
Set the show properties in PPT
And then in the PPT to set the show properties, but also a picture to fix things. Enter the slide Show tab on the top of the PPT and click the Set Slide Show button to set the show properties in the pop-up Settings window. The only changes you need to make are the multiple monitor settings at the bottom right of the window: Select Monitor 2 in the Drop-down menu shown on the slide and tick the speaker view. As shown in the following illustration:
The final celebration.
Play slides in the PPT, the effect please check: