Clearing the browser cache is often the quickest and easiest way to clear up some issues you may be experiencing with the game. Here is how to clear the cache on some of the most popular browsers:
Internet Explorer: click TOOLS - INTERNET OPTIONS. To the right of Browsing History click DELETE. To the right of Temporary Internet Files, click DELETE FILES. Then click YES (It may take a couple of minutes). When complete, click CLOSE, click OK.
Firefox: Click TOOLS - OPTIONS. Under ADVANCED click the NETWORK tab, then click CLEAR NOW, (It may take a couple minutes). When complete click OK.
Google Chrome: Click the right hand box which has 3 bars. That will be for your customization and controls. It will take you to Settings. From there scroll to the bottom and click on the blue link that says "Show advanced settings..."
From there go to the Privacy area and click CLEAR BROWSING DATA. (It may take a couple minutes). Select Cached images and Cookies and other site and plug-in data, and click on Clear browsing data button.
When complete, click CLOSE.
MAC USERS: SAFARI : From the Safari menu, click Reset Safari, then select only EMPTY THE CACHE and REMOVE ALL COOKIES, then click RESET.
FIREFOX - From the TOOLS menu click CLEAR RECENT HISTORY>from the TIME RANGE TO CLEAR drop down menu select the time range or select EVERYTHING. Click the down arrow next to DETAILS to choose which elements to clear and then click CLEAR NOW.