Here are some problems that I need to get ironed out, and am sure they can with all the intelligent people here:1) Bought a new video card and installed it. Went from the default 64 MB in my Dell 8520 to an ATI Radeon 9600 Pro 256MB. I see absolutely no difference. In fact, my frame rates dropped and the plane studders and "hiccups" even more. I have 256 MB RDRAM, and will have another 512 coming next week. Will that fix it? What settings should i have my video card on and how should i do it?2) The PMDG 737's and the planes that I have tried are extremely hard to control while taxiing. as soon as I try to accelerate, the plane wantes to turn. I have to fight like a mad man to get her straight. I calibrated my CH Pedals and Yoke too. I have FSUIPC as well. What should I do?3) I keep getting these messages where the brakes are that says "differential brakes". I have no idea what that means. Anyone know what it is and how to stop it?4) Every time I load my fuel, the FMC gives me an Insufficient Fuel message. I have plenty of fuel on board too. I planed it with a 737 fuel planner and also got the messages with the tanks full. Ideas?5) Theses two are easy that should be answered without problem. How can I change the altimeter? I cant find it anywhere! And I can't hear the markers on approach. Please help me out!Brad

Hello Brad,I can answer a few of them:Ad 1) Yes, you need more RAM, and I would guarantee that you will see a big difference when you get your extra RAM installed. Radeon 9600 Pro was a good choise.Ad 4) Maybe you entered the wrong waypoints, as some waypoints have identical names. Check the longitude/latitude for your desired waypoints so that you can select the right ones on the FMC.Ad 5) To adjust the altimeter, simply press the B key on the keyboard, and it will be adjusted automatically, according to the current barometric standing. When you pass 18,000 ft. this key will also set the altimeter to the standard pressure 29.92 automatically.Hope somebody else knows the answers to the rest of your questions.Kind regards,Nico