Very similar to problems reported by others. Just started recently... flash player on Win 7 and IE 10 plays audio but no video... just black box or blank.
Have reinstalled flash player several times... including following all clean install instructions several times. Installation completes and and tells me it's installed successfully.
Have carefully matched IE settings to allow activeX content and have enabled the flash player object and turned on active scripting for all zones, etc. Still no video.
Going to the flash verification page shows a blank box where the current installed version should be.
If I look in control panel under Flash Player it tells me the activeX version is 11.6.602.180 and that the plug in is "Not Installed"... could that be the problem?
What can I do to fix this? Thanks in advance for any help.