I have to completely agree. My gut feeling is that the main cause of this may be the GTK toolkit. It's a great library but they need to concentrate I think on two main things: speed and appearance. It still feels sluggish compared to Windows and it just doesn't look quite right or polished as Windows. Some of the widgets just look awkward no matter what theme engine you use. Don't get me wrong I use Linux most of the time, but in my experience Windows still reigns in speed even compared to OSX. OSX has the appearance down pat but still is slow compared to Windows. It's minor nitpicking I know. Productivity is what counts but it would still be nice to clear these two issues up.