On several machine running FC5 after the update to KDE 3.5.5 there was a great deal of difficulty with the screen and mouse. The windows kept flashing and there was up to 100% cpu usage and there was difficulty maintaining control over what was happening. Also the K menu had no control centre. Eventually I nailed it down - and if you are having problems with this update then you might want to look at the following: 1) K menu items missing (maybe you use Crossover Office, or have edited the menus with kmenuedit - the fix is as follows: cd ~/.config mv menus menus.orig kbuildsyscoca 2) The window problem I found is related to the "focus follows mouse" setting in Control Centre->Desktop->Window Behaviour - select Policy to be "Click to Focus" and Apply it. This fixed my system. 3) If running Kmail you may find that the Reply to All button on the main taskbar has disappeared - if you right click the kmail taskbar and select the main taskbar you can put any button back in and Apply the settings. Finally if you made any changes to /etc/X11/xdm/kdmrc then the update also gave a new file as /etc/X11/xdm/kdmrc.rpmnew which you may want to check. Once all the changes have been made it might be an idea to restart X. -- mike cohler