Hi Pete,
I read with interest this thread hoping to find an answer to a possible issue. I have just done a reinstall of -XP-OS, SP2, FS9. FS9 Patch, DX9.c, etc. I am now aware of things in FS9 that may be normal but can't recall seeing before the reinstall. It's like seeing for the first time a dent in the door of your car after having it serviced. The dent was there for years but you never noticed it before!
Here's my dent! In Fs9, if I select "World/Weather/ and check the Wx Themes box...say "Winter Wonderland" ...the sim will show snowing special effects OK for a few moments - but then the wx seems to clear up within a few seconds. If I go back to the "World/Weather dialog I see that the "wx Theme" box is no longer selected, but instead the "User Defined Wx" box is now mysteriously checked instead?
Is there a setting in FSUIPC that I may have made causing this wx selection to "switch"? I have read your manual papers but may have missed a fix for this - if there is one.
Finally like the car dent - this "checked box" switch may be normal behavior for FS9 but I never noticed it before!
Thanks Pete
kosmo007