I have seen that many times on a slow internet connection the images fails to load properly. They load after refreshing the page. But again, refreshing the page means losing precious seconds of your online time.
ReImage – – Bookmarklet (Drag to bookmarks toolbar or right-click add)
Reload only images in any web page without reloading the web page itself.
ReCSS – Bookmarklet (Drag to bookmarks toolbar or right-click add)
This little bookmarklet makes refreshing your CSS a breeze. It comes in quite handy when you’re developing dynamic applications. Tested in IE and Firefox.