so all was fine then today I decide to run yum update, and get a ton of duplicate errors, oddly as you can see different version same release showing as dupes. I tried clean etc etc it just doesn't go away:
wine-twain-1.5.2-2.fc16.i686 is a duplicate with wine-twain-1.5.0-2.fc16.x86_64
wine-wow-1.5.2-2.fc16.x86_64 is a duplicate with wine-wow-1.5.0-2.fc16.x86_64
1:xorg-x11-drv-nvidia-295.49-1.fc16.x86_64 is a duplicate with 1:xorg-x11-drv-nvidia-295.33-3.fc16.x86_64
1:xorg-x11-drv-nvidia-libs-295.49-1.fc16.i686 is a duplicate with 1:xorg-x11-drv-nvidia-libs-295.33-3.fc16.x86_64
1:xscreensaver-base-5.15-6.fc16.x86_64 is a duplicate with 1:xscreensaver-base-5.15-3.fc16.x86_64
1:xscreensaver-extras-5.15-6.fc16.x86_64 is a duplicate with 1:xscreensaver-extras-5.15-3.fc16.x86_64
1:xscreensaver-extras-base-5.15-6.fc16.x86_64 is a duplicate with 1:xscreensaver-extras-base-5.15-3.fc16.x86_64
1:xscreensaver-gl-base-5.15-6.fc16.x86_64 is a duplicate with 1:xscreensaver-gl-base-5.15-3.fc16.x86_64
1:xscreensaver-gl-extras-5.15-6.fc16.x86_64 is a duplicate with 1:xscreensaver-gl-extras-5.15-3.fc16.x86_64
1:xscreensaver-gl-extras-gss-5.15-6.fc16.x86_64 is a duplicate with 1:xscreensaver-gl-extras-gss-5.15-3.fc16.x86_64
youtube-dl-2012.02.27-1.fc16.noarch is a duplicate with youtube-dl-2011.12.08-3.fc16.noarch
3:ypbind-1.35-2.fc16.x86_64 is a duplicate with 3:ypbind-1.33-11.fc16.x86_64
yum-3.4.3-24.fc16.noarch is a duplicate with yum-3.4.3-7.fc16.noarch