I sometimes get a white screen, wait a while, and figure out the game is loading without showing it until later. So when it pops up, it is already loaded at 40 something percent, depending on the game. I wouldn't do anything drastic yet, unless the white screen takes quite a long time to finally go away. If that happens, it is possible that your screen wasn't fully loaded the first time. If so, just refresh the site and try again.
It could be that your flash isn't updated to the latest version. Also, if your internet lags the game won't load correctly. If you don't have the latest flash then get it. If it's lag problems then refresh the page.
Then it might be the lag, I'm always up to date with flash/shockwave player. Then I'll just reload the game until it works? Thnx for the help anyway. =]