Tiny fonts again

Hello SuSE people, Here we go again. Got a beautiful new 21" lcd monitor fron all of my children for the old guys's birthday. Installed jusr fine. (Samsung ) Of courae with higher resolutions I had to change icons and fonts in KDE. Not a problem. But when it comes to Firefox, GQview, Gimp, and the KDM logon screen, I end up with teeny tint fonts. Less than 1/8" high and almost impossibe for the old guy to read. Fixed the KDM logon screen by editing kdmrc. This happened a couple of years ago in 8.0? and I fixed it by running gnomecc. Don't have that anymore in 9.2. Suggestions on how to increase font sizes in X for the apps that KDE doesn't handle ?? Bob S.