I am running Windows 98 Second Edition, and I just discovered thumbnails, where windows explorer shows small thumbnails of bmps, jpgs, gifs, and web pages while in a folder where thumbnails are enabled. I had it working great until I shut down. Now that my computer has been shut down and started up again, Windows Explorer refuses to show previews for .jpg and .gif files, all other previews are fine. In folders where I already had thumbnail view selected (before I shut down), Windows Explorer gets .jpgs and .gifs from the Thumbs.db file and displays the thumbnails fine. Also, Internet Explorer now refuses to display images located on my hard drive. Windows has suddenly turned against .jpgs and .gifs. I had this same problem before my reinstallation of windows, except it was only .jpgs and I wasn't using Thumbnails. I tried to get support from Microsoft when it happened last time, but they eventually said to just reinstall, which I ended up doing for other reasons. I should also mention that I'm using the IE6 beta, which has been very stable and has had no problems until I started using Thumbnails and restarted.