|See #3. Here we go then:|
A registry change is necessary in two places (adjacent keys). These are:
In both cases, in the right pane you introduce a new DWORD entry.
In both instances you give iexplore.exe a value of 2.
You should already have similar looking entries for "explorer.exe" (but these are Windows Explorer rather than Internet Explorer).
You then "reboot", go to YouTube and see if it helps. On mine it is mostly a full cure, although just occasionally the odd thumbnail still doesn't appear. YouTube without thumbnails is a big pain so I hope it helps. If not you just delete the two new iexplore.exe registry entries and I'm probably out of ideas. If it helps then something similar will apply to the other browsers.
From what I can make of it the above settings also affect Safari. Opera has it's own settings (similar to Firefox) so IF the above helps we can look at that too.
What's the time?