I have a win xp pro sp2 system, 1 gig mem and ZA suite licensed.

I've been experiencing crashing of my win xp system since the Oct. 22 update. I get the following or something similar
"Instruction 0x7c910a0a reference memory at 0xffffffffd. The memory could not be read". I can't take a screen capture b/c the system is very unstable and I can't launch any other program. Vsmon crashes and when I shut down ZA suite, everything crashes. When I shut down, I get errors with zlclient (?), vsmon and xpcom have errors in shutting down. It may not even shut down forcing me to power off and on to reboot.

I've rebooted into safe mode to delete the .tmp, .rld and .rmp (?) files from /windows/internet logs/ as per forum message and rebooted. Still have the same crashing.

How do I roll back from the Oct. 22 update?

Operating System:Windows XP Pro
Software Version:7.0
Product Name:ZoneAlarm Internet Security Suite