Flex Error #1001: Digest mismatch with RSL http://www.sailonline.org/static/windy/framework_3.5.0.12683.swf. Redeploy the matching RSL or relink your application with the matching library.

If you get this error, either after updating Flash or after emptying your Flash cache (or after some other update) this is what you need to do. 

1. Click on the SOL Classic Client in the race description. 

2. Once in the race, change the end of the url from /?version=classic to /?beta=true 

THEN 

3. Next time just click on Go To Race in the usual fashion.