Hi Slade,
Follow
this link to learn how to clear both of your caches. Game & course files are stored in your PC's cache and at times those files can be become corrupt, fragmented or out of date. Clearing your caches allows your PC to re-acquire all the necessary files from the server and that should alleviate your loading issue. Typically when you see this problem you want to clear caches as a first step.
Be aware that clearing your cache will reset your in-game options. If you have any preferences for things like graphics quality, putting grid or flagstick animations then you'll want to reset those before you tee it up again.