AVI Thumbs

[Alex]

Hello,
My Windows Vista OS is not showing the thumbs for AVI files what are watched
through WMP11 with DivX codecs.

Until this morning everything was fine, now I can't see the live thumbs for
AVI files.
Why? How can I fix this?
Thank You

[ Vista Home Premium SP1 x64 ]

 

[Alex]

"Most recent restore point" -> "None"
So, a restore point is not available...