Pwede po bang patulong regarding this?.. Kapag nag oopen ako ng mga video files..nag eerror and explorer..nag search ako about this..and they said is to uncheck "Always show icon, never thumbnails" in Folder options.. Mayroon pa po bang ibang way..dahil mahirap pag walang thumbnails specially images..hindi makita images unless to open it.. thanks! here's my screenshots..

http://www.mediafire.com/?jzgyjnhnmwz

Anyways, thanks for viewing my post..I got the solution now..