I was running Flight Sim X on my MacBook Pro (running Vista) last weekend after doubling my RAM (4GB FTW!) and everything was going great. I noticed a HUGE increase in speed, and I was able to pull 25fps or so with most settings all the way up. Life was good. Three days later, I boot back into Vista to do some more simming. Don't mess with anything, just load FSX after Vista finishes loading up. I run the exact same mission that I was doing before...and everything just grinds to a halt. I was getting literally <2 fps. WTF? I reboot, thinking its some random weirdness. Lo and behold, it does it again. I check everything in the nVidia control panel, power management settings, everything I could think of. Nothing changed. After some help from another forum, I realized that my PCI Express Link Width is stuck on 1x and won't throttle up when needed. Not having a BIOS to work with, how can I change this manually or otherwise force it back up to 16x?