FSX Visibility Zero

I am using FSX Accel and FSRealWX v2.01.328 Windows 7 SP1 16GB. I fly to/from KORS a lot and recently the WX at KORS is ALWAYS 1/16 mi visibility just nearby the airport. 2 Miles out it changes to as it should be according to the metar. If I change the advanced weather in USER DEFINED WEATHER to a base cloud layer of 1 to 1998 instaed of 0 to 1998 elevation, it appears as it should. Any idea what's going on?

Thanks, GWilly