Had this problem with the beta a while back. Switched to Vipre and now back to Zone Alarm Extreme and the same problem.

On Fri 9/3/2010 11:20:02 PM your computer crashed
This was likely caused by the following module: ntoskrnl.exe
Bugcheck code: 0x7F (0x8, 0x80050033, 0x6F8, 0xFFFFF80002A85D28)
Dump file: C:\Windows\Minidump\090310-12916-01.dmp
file path: C:\Windows\system32\ntoskrnl.exe

According to google this is common with Zone Alarm. Any ideas.