xorg takes 100% CPU

[Rod Butcher]

Greetings from sunny Sydney. I have x.org 6.9 running as part of the 
standard Mandriva 2006 x86-64 release on a dual processor AMD Athlon, 
running 24x7.
After a few days of operation x starts taking 100% of one cpu and has to 
be restarted to get it down to its usual 1%.
Any pointers as to how I debug this ?
thanks
Rod

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