yamatoHD remove extensions.mkext and reboot without any -f or whatever...
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my system worked with 9.2.2 kernel and system.kext better than now with all updates installed
sure i ran marvin's utility and replaced decrypts and all patches worked.

to be honest my system was perfect with and without new kernel. just the timemachine update messed it up
now i have short mouse movement bugs again sometimes, but they go away after a minute or so...
also buggy transmission, firefox and ssx
hmm i wish i did make a backup partition before installing the updates, damn it!

despite im already saving money for an intel system i appreciate every help and hint i get for these annoying things

my relevant specs are:

msi k8n neo 4 platinum - socket 939 nforce 4 ultra - amd x2 4600 @ 2,8 GHz - 2GB CellShock DDR1 RAM @ 500 MHz
Zeph's OSX 10.5.2 rev.2 9C7010 Kernel 9.2.2 on IDE HDD