My OS (XP Pro SP3) got hopelessly corrupted, and I had to do a complete re-install of the OS and FSX. Previously, I had a near flawless installation of FSX SP1, and never installed SP2 because of all the ports I loved to fly. This time I decided to install SP2 and stick with true FSX aircraft. The installation went well, and I have not installed any of my add-ons yet. Everything is default.
In doing some test flights, I am getting flashing clouds and popping scenery textures. I am using my old SP1 settings, which were just about maxed. My system could handle it in SP1. Also, when going into a turn, a section of the screen seems to shift side-to-side horizontally. I never experienced these effects with SP1. I am using nHancer with Nick's settings and the only tweaks I did to the .cfg were to set wide-screen aspect to true, TBM to 40, and tried the bufferpool tweak set to 8M, but it didn't seem to make any difference. Since I had so many problems with 180 series drivers with my 9800GTX, I am back to 178.13, which worked great in my previous installation. My system specs are in my signature.
Any help or advice you guys could give me would be greatly appreciated. Right now I'm half tempted to dump the whole thing and go back to SP1, but if I can get this SP2 installation to work right, I know I'll be a lot happier...