gauges vibration

Hi,I have this pc configuration:- Motherboard Abit NF7- Cpu Amd Barton 2500+@3200+- Graphic Card Sapphire Radeon 9600xt 128 mb- Ram 512- Drivers: ATI Catalyst 4.11, Nvidia Nforce2 5.10 complete pack, DirectX 9.0c- OS: XP Professional (SP2)I run Fs9.1 in 1280x1024 32bit mode (85 Hz monitor refresh, V-Sync off), antialiasing 4x via driver (no AA of Fs9.1, is disactivate), trilinear AF via application controlled selected in Fs9.1.When I set virtual cockpit view and I rotate the view with active camera 2004, I see a "vibration" of gauges. Why this? Is normal? If I don't rotate the view, I don't see this vibration.I have also the mipmap texture level in hardware section of fs2004 options set at "4".Tanx to all that help me to resolve the problem.Best WishesM.K.