I upgraded to 2.6.39.
psmouse.ko module fails to handle some PS/2 mouse models.. 2.6.39 has less error messages than 2.6.32-5. But, it looses mouse coordinates often which triggers Xorg window manager go out of control. Only solution I found is to replace PS/2 mouse with a USB one.

Nov 16 15:13:19 theblue kernel: [275921.510266] psmouse.c: Wheel Mouse at
isa0060/serio1/input0 lost synchronization, throwing 3 bytes away.
Nov 16 22:43:26 theblue kernel: [293066.497048] psmouse.c: Wheel Mouse at
isa0060/serio1/input0 lost synchronization, throwing 2 bytes away.
If you have above messages and Xorg goes wild, I suggest getting a USB mouse. How many hours I had spent? Hmm..
You can check psmouse's options 'more or cat' /sys/module/psmouse/parameters/*
The below is the default options.
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force_elantech N
proto auto
rate 100
resetafter 5
resolution 200
resync_time 0
smartscroll Y
If playing with the options solve the bug, it will be great. You don't need to buy another mouse.
To pass the options to psmouse module next booting, make a psmous.conf file in /etc/modprobe.d directory.
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options psmouse proto=imps rate=60 smartscroll=0