vsmon runs constantly when nothing is being downloaded, uses up to 60% of CPU, probably averages about 20-25% when the computer is in "idle". I have no idea what it is checking. Firefox 5 pages are loading very slow. This does not occur constantly, just very frequently.

Vista Home Premium 64 bit OS
Pentium D 2.8GHz
4.0 GB RAM

ZoneAlarm version:
vsmon version:
Driver version:
Anti-virus engine version:
Anti-virus signature DAT file version: 1057067232
ZoneAlarm Browser Security: 1.5.311.0
ZoneAlarm ForceField Spyware Scanner:
ZoneAlarm ForceField Anti-Phishing Database:
ZoneAlarm ForceField Spyware Sites Database: 04.155

Any help will be appreciated.