Prevx with SafeOnline seems to conflict with Online Armor Premium, especially with Internet Explorer. The milieu: Windows XP Professional SP3 [5.1 Build 2600] (x86) 2.20 gigahertz 2.20 gigahertz AMD Athlon 5000 Dual-Core Security 128 bits, 40 bits Hardware DEP Available Yes DEP for 32 Bits Applications Yes DEP for Drivers Yes 1024 MB Megabytes Installed Memory c: (NTFS on drive 0) 26.86 GB 17.38 GB free d: (NTFS on drive 0) 133.17 GB 90.12 GB free f: (NTFS on drive 2) 100.24 GB 48.85 GB free NVIDIA GeForce 7025 / NVIDIA nForce 630a Prevx 3.0 Version 3.0 Virus Definitions Version Up To Date Realtime File Scanning On Emsisoft Online Armor 18.104.22.168 Prevx 22.214.171.124 Sandboxie 3.48 SpywareBlaster 4.4 with autoupdate Trojan Remover 126.96.36.19995 Vidalia Bundle: Polipo Tor Vidalia Browsers: SeaMonkey 2.0.8 (default) K-Meleon 1.5.4 Mozilla Firefox 3.6.10 Internet Explorer 8.0.6001.18702 Prevx and Online Armor both filter the web, and I believe that SafeOnline and OA's Web Shield conflict. Sometimes pages would not load when both were operative; I don't have that problem when I turn off SafeOnline. Has this problem been noticed by anyone else? My temporary solution was to turn off SafeOnline, but should I turn off OA's Web Shield instead. Which one should I leave on? Which one is more effective? Prevx is among the best antiviruses, light on resources, but is it the better web filter? I believe that web filtering is a firewall function, and the feature works in concert with Firewall, Program Guard, and Keylogger detection. I don't know how SafeOnline works, but I believe that it would work best with a firewall without web page filtering. What say you? Which should I use to filter the web pages? Both are effective.