my linux story: and here it is exactly how it breaks

quick and clean. since compiz's not working, i decided to install kwin. so i've chosen "kubuntu-desktop" in synaptic. while downloading, i was doing some simple tasks, like editing text docs in ooo and choosing a screensaver. and suddenly the computer starts to work very slowly (while choosing a screensaver), ąnd then freezes completely. i managed to restart via 'skinny elephants' and FORTUNATELY everything's okay, and synaptic resumed it's work without protests. but ooooh how stable.