Hi, I'm new to this so please bear with me. I've been sucessfully playing flight sim x on windows 7 for a few days now. Since I was so anxious to start playing the missions, I didn't installed the service packs yet either, but it seems to work fine, with the exception of random crashes. When I noticed the service packs, I saw they said something about not installing them if I have the acceleration expansion pack. I bought the gold edition, so I decided to install the expansion then. The installation seemed to work successful, but now when I try open the program I immediately get the following error message: "This graphics card does not meet minimum requirements for shader support. This product requires a geForce3/Radeon8500 class or better graphics card. Flight Simulator will now exit." My computer is only a couple months old and I think there must be a way around this without buying a new graphics card since it was working fine before I tried installing the expansion pack. Can anybody help me get around this issue?