problems with weather

[gbl25]

I am having problems with the weather.  Everytime I bring the visibility down below 3 miles all the houses, trees, and any other static scenery turns white, except for the ground.  Then the scenery further out disapears with this defined white border.  It looks very unusual.
I just replaced my old video card with an Ati 9200-256 mb video card.  It worked just fine before so I am assuming I have some settings wrong.  Please give me some advice.

1700 mhz
512 mb ram
windows xp

[alrot]

set visibility into Unlimilted is in weather

[JRoc]

Sounds like fog to me...

[jordonj]

I have had problems with popping in and out of fog as well...I chalk it up to Jeppesen's unerring accuracy