I have found that when I download real world weather. it really kills my FPS .Anybody else noticed this and is there a fix?Thanks Barry

You're best bet is to replace the FS9 clouds which are heavy on fps. There are a few options, there's the freeware FSW sets which you can find here on AVSIM. Included is a set of DXT3 low texture clouds which are much more FPS friendly. My own solution was to purchase Flight1's Flight Environment, an excellent program. This program provides an option for installing low res clouds. I did that. They look great and they are much more FPS friendly than FS9 clouds.Lee