When using Chrome, be sure to clear the Adobe flash storage settings, but leave the WGT web site.
Tools > options > clear browsing data > click the storage settings link at the bottom of the box.
Be sure all unwanted programs are not running, and all windows are closed when playing the game. A lot of people perform downloads and what not during game play which will definitely make the meter glitch. Use Chrome for game play only.
Also, repeatedly clearing of the Chrome cache will result in slow load times.