I upgraded my video card from and ATI Radeon 9800pro to a Nvidia Gforce 6800GT, the problem is that now if I turn the runway lights on at night the runway looks green, I use FE and the clouds looks like if there where painted, I have change the drivers for old ones but it does not help.Please help me!!Best regardsRicardo Zaldivar

Ricardo you should stop drinking Tequila with your breakfast!! *:-* More seriously, did you properly uninstall your previous ATI driver? (using ATI uninstaller tool and cleaning the registry).Also did you stop antivirus/firewall prior to installing the new driver?If the answers are yes, try reinstalling another (the last one from Guru3D.com ) Nvidia driver instead of the one you got together with the card.If it doesn't work I suggest that you ask the shop for replacing your card that should work perfectly.PS: your post will probably be moved to the hardware forum where you will get better help: http://forums.avsim.net/dcboard.php?az=show_topics&forum=197Good luckDavid