Win7 Computer watching video black screen but what about the sound?

1, first we can be 360 security guards to simple clean up the Web page cache.

2, then we see if Flash is the latest version, if not the upgrade flash.

3, can be in the position of 360 human service input your problem to help solve.

4, to see if your graphics driver is normal or update the graphics driver.

5, check whether the computer IE is too old, upgrade IE version.

6, see if there is a problem with the video card, remove the video card reinstall or change a video card.