Ok, it was my bad

I logged in to KDE and saw that the font size was abnormally large because of the super-high resolution it was set to... I customized my KDE desktop like I did in SuSE, and when it all looked good to me... surprise! under gnome it looks identical.
Should have thought about it earlier.........
I also ran those yum commands to see if I have all the media packages installed, and I was missing 4 packages.
I installed them through Smart, except vdr-xine which I couldn't find. Running "yum install vdr-xine" didn't find anything as well.
Everything seems to work, but I wonder where can I find that missing package...