Well, I don't know if it's just a KDE problem, but Lazarus GTK apps look terrible on my SuSE system. It's the fonts in particular - they're not anti-aliased and they look appallingly crude and old-fashioned. Considering that you can progam cross-platform with wxWidgets in wxPython and get a wonderful-looking GTK2 app, Lazarus really looks like the poor relation. I think Lazarus must move to GTK2 as a priority if it is to be a successful cross-platform development tool.