I click the update button and I get a quick red text saying "updating definition files" (maybe paraphrasing there) and than nothing. Sometimes I'll get a quick file name in red text but than nothing after. I'll close the manager , open it up again and my ZA firewall asks if I want Crawler Toolbar access to the internet, I click allow, and the update window shows that my definitions need updating still. I had just updated my Sandboxie to the latest version but I don't think that should have anything to do with it. I also was in Sandboxie mode(3.20) when I tried to update the definitions, then realized it, got out and started a non sandboxed browser and tried again but to no avail.