I am having the same problem and also a stuttering of the swing meter that has really screwed up my improvements to my game. I have tried everything imaginable. Clearing the cache, dumping cookies prior to playing, Game Booster III, every tip I read I tried, but after 2 or 3 holes it starts all over.
I have a friend that does computer work and I talked to him about it and he said it was probably my system, but when I told him I had 3.2 Gigs of RAM, 2.8 GHrz and all the stuff I was doing, he told me it had to be either my server or the game source. I am on the highest level of DSL my provider has, but it is getting me very frustrated with trying to play the game as I do enjoy it so much.
It didn't do that last week, then I changed levels of play, went from Pro to Tour Pro and that is when the defecation hit the rotary Oscillator.