I've recently started having an intermittent problem on my XP system when I open Firefox using Sandboxie (both 4.04 and 4.06). Then, when I access a search engine such as Google or StartPage and enter a search string/request, it doesn't respond to that request (no results are produced) -- it's almost as if it locks up at that point. What's really weird is that this doesn't happen every time, but frequently enough to be annoying. By the way, when I use Firefox without Sandboxie, I don't have the problem. So, I've concluded that it must have something to do with Sandboxie. FWIW, I'm also using HitmanPro.Alert. Any thoughts??