I'm running Win 7 Ultimate x64. I cannot seem to generate thumbnails for .flv videos. I've tried K-Lite, K-Lite Full and K-Lite Mega, always doing an advanced install, making sure all boxes relating to .flv and thumbnails were checked. I've tried Win7 Codecs and Shark 007. I've tried using both the x86 and x64 versions, alone and in tandem. I've tried using a .reg file. I've tried everything that I can find online, always properly uninstalling one set of codecs and rebooting before trying another one. I've spend hours online researching the matter and hours attempting to get something to work. I didn't have this problem when I was running Vista Ultimate x86 on my other computer. Am I stuck with trying to convert each and every .flv video or is there some other way to solve the problem? I apologize for my ignorance regarding this matter. Thank you in advance for any information you may be able to provide. C.B.