strange behaviour of gdm-binary

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hey guys

is it normal, that gdm-binary uses constantly >50% (mostly about 60%) of 
my cpu? :-/

i'm running fedora core 2 test 2 (development - upgraded from fc1 via
apt-get) on a dell inspiron 500m notebook with an 1400mhz intel centrino
cpu.

thx, regards
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