After installing Adobe Reader 8.1.2 system restarts and freezes

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after installing adobe reader 8.1.2 system restarts , freezes (hangs, locks up)

i have windows xp sp2, plenty of spare disk space , adobe reader 8.1.1.

the 8.1.2 reader appeared install ok , asked system restarted. when accepted shut down , rebooted expected,
but before restarted froze , nothing.

i pressed power switch , tried again same thing happened again.

to usable system had boot in safe mode , go restore point.

i don't know if relevent stopped before nortom firewall starts.

i keen install new version because of security fixes.

can help?

thanks in anticipation



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