I tried the beta with GW since I have a license for both; and prevx doesn't appear to protect the browser beyond the current malware detection. I tried creating a rule for http://* domains and still prevx didn't do anything besides putting a tab above the address bar. I suppose this should be expected since the protection is overlapping, so to speak. When I uninstall GW prevx browser protection works fine. It would be awsome if the two could work together since prevx has some browser protection functions that GW doesn't.