Hi, Some time ago a strange thing started to happen. X uses a lot of CPU after the system has been running for a while (more then 50% of my Duron 800). After I restart X (CTRL+ALT+BKSP) it is at about 4% which slowly increases I think. I say I think because I am not sure if it doesn't increase with sudden high leaps or that it constantly increases a little bit. What can this problem be? How can I find out what is causing this? Sander