This is possibly due to the way a browser (like Internet Explorer, Firefox, Safari or Opera) handles web pages.
Every time you visit a website, a local copy of that page is stored on your computer. Because of this, the next time you open the website, the content can be taken from the local copy, causing the site to display quicker. This system is caleld ‘caching’.
By caching, a website will load faster and consume less bandwidth. The disadvantage however, is that the latest version of the website might not be displayed.
You can force this, by navigating to the website through your browser. Once you have reached the site, you can use the combination ‘CTRL + F5’. When you normally click F5, the webpage will refresh. By pressing both ‘CTRL’ and ‘F5’ simultaneously, you tell your browser to refresh the page, and clear the current cache. By doing so, all elements on the website will be downloaded again, and the latest version of the site will appear.
If this method doesn’t work, you can also clear the history/cache of your browser. In firefox, it works as follows: go to Extra > Clear private data. Check the “cache”-option here, and proceed to “Clear private data now”.
In Internet Explorer you can go to Extra > Internetoptions, and proceed to click on ‘Delete’ in the part of ‘Browserhistory’. A new window will open, giving you the choice of what data that needs to be cleared. Choose for ‘Temporary Internetfiles’, and confirm the action when asked.