I've started getting a PowerPoint (2010) error when inserting any MP4 video into a screen. It's "Some controls on this presentation can't be activated. They might not be registered on this computer."
To make a long story shorter, PPT attempts to repair the presentation, and says it "removed unreadable content." It has not, though, because the problem message keeps recurring.
Corrupt PPT? I don't think so. I can open a new presentation, insert an MP4, and duplicate.
Bad MP4? I don't think so. I've tried multiple MP4's, some of which I've used in previous Presenter 13 projects.
The only way I can prevent the error messages is to delete the MP4 from the PPT screen and the save the presentation.
I've also repaired Office, re-installed Office, and done a clean install of Studio 13.
I've uninstalled and re-installed Flash (now on 126.96.36.199).
Lastly, I re-imaged my computer from a system backup from Sep. 5 (this problem just started yesterday), figuring that'd surly cure my problem. No dice. And this was confirmed before Windows 7 loaded any updates that were lost between Sep. 5 and yesterday...
Looking for help!