Hello everyone, I am using Windows 7 operating system with 1 GB RAM, Core2Duo processor and Mozilla Firefox as my browser. I suppose that the thumbnail preview is not working in Windows 7 because I cannot see the thumbnail previews of my video files. Sometimes the image files are also not showing the thumbnail preview. As I have recently installed Windows 7, I do not have much knowledge about its working and all. Please tell me how to have a thumbnail view of these video and image files?