X High CPU

[Sander Hoentjen]

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