I have a separate browser (Comodo dragon) that I use only for playing golf on WGT (I don't even use it for these forums. Then EVERY time I want to play a round I do the following.
1. Run CC cleaner (a free clean up programme that will clear your browser cache and a lot more besides).
2, Right click on the game screen.
3. Select Global Settings.
4. Select "Local Storage Settings by Site" icon.
5. Clear all apart from "media5.wgt.com"
6. Play game.
steps 2 - 5 clear the flash cache