I've noticed that the thumbnail previews on my taskbar are not updating; if I'm using a word file, for example, the thumbnail shows the beginning of the document, even if I have been working on page 7. Similarly, the thumbnails for webpages always show the top of the page, even if I had the page open towards the middle or the bottom. This means that instead of just having to hover, I actually have to click on the thumbnail and open the document/webpage in order to see where I was working/reading. Is there a way of keeping thumbnails up to date?