FSX and texture problems after install of SP1   

Does someone have an answer for the following?:

I have been flying with FSX (deluxe edition) for about a year now. I 
recently decided to install the SP1 patch to FSX to improve overall 
performance of simulator. I installed SP1 in a "clean" FSX install (I had no 
add-ons whatsoever installed in FSX) as instructed by developers of SP1. Even 
though the installation was successful, and performance has seemed to 
improve, I have three very upsetting problems since I installed SP1: 
1) the water texture does not seem real anymore, even if settings are high; 
It has no reflection ata all of aircraft or sunlight; it looks terrible. 
2) When I choose "Fair" weather or "Cold front" weather, a white thin 
blanket of what seems to be clouds (like a thin layer of fog) suddenly 
appears underneath the aircraft after I reach certain height, sometimes above 
9,000 FT. To describe it, it looks like when you are flying at very high 
altitudes and select "foggy" or "rainy" weather. The only way I  can 
eliminate this white thin layer is by re-selecting "Clear" weather. And even 
then, sometimes it still appears after certain height.
3) With SP1, aircraft no longer seem to have windshields or windows which 
make the aircraft look terrible. They look like "cheap" add-ons. I have 
un-installed and re-installed SP1 and FSX several times already and the 
problem persists. Anyone knows why this occurs or if this is "normal" or to 
be expected when you install SP1? Any help will be greatly appreciated.
My system specs are:

Operating System: Windows XP Professional, Service Pack 2
300Gig Hard Drive
Processor: Intel Pentium D CPU 2.80 GHz (2 CPU's)
Capacity: 512Mb
Net Framework v2.050727
Memory: 1014 MB RAM
DirectX 9.0 - Updated 
Display/Driver: Intel(R) 92945G Express Chipset Family, 224MB RAM
1280 x 1024 x 4294967296 colors
DirectDraw / Direct3D acceleration - enabled
-- 
Traveler

date: Tue, 10 Jun 2008 17:13:00 -0700   author:   Traveler