[bug] crash when start with shade status

If the bmp is shaded when exit, it will crash on the next start up...

also, the kwin crash problem seems to be caused by the buggy
gtk_window_set_transient_for() function, but I don't know how to fix it.
For example, if I enable  
 
gtk_window_set_transient_for(GTK_WINDOW(mainwin),GTK_WINDOW(equalizerwin));

in equalizer.c, then open the pref window directly, the kwin would
crash. However, if I open the equalizer window once, kwin wouldn't crash
anymore. The same goes for the playlist_win.c. 

lucida