Hi:
Apparently, Vine is not yet completely dead, but it will be soon.
Having said that:
Different browsers use different versions of Flash Player.
For IE, it's the "ActiveX" version.
Under Win7, that version of Flash Player either needs to be configured to auto-update or the user needs to manually update it.
Since you say you use IE...
You can
verify that you have the current version of Flash Player for IE (as opposed to the version for Firefox or other browsers), by using IE11 to go here -- it will test to see what version is installed:
Adobe - Flash Player
If it shows the current version installed and working, then the problem is NOT with Flash Player.
If you need to
update Flash Player, you can go here:
Adobe Flash Player Install for all versions
IMPORTANT: Be sure to opt out (un-tick the box) for any free, bundled, crapware that the setup wizard might offer.
If you need
help with Flash Player, you can go here:
Flash Player Help
If none of that works, we'll need to wait for someone who is more expert with IE, as I do not use it (and I do not use Twitter, either).
QUESTIONS:
1)In the interim, have you tried a different browser, such as Firefox or Chrome?
That would be a good step to try to isolate the problem.
2) What security applications are you running (AV, anti-malware, firewall)?
3) Can you provide a link to one of the videos with which you are having a problem?
Thanks,
MM