When I installed the x64 version, I got the unsigned driver warning, (which I had supposedly fixed via cmd tweak "bcdedit /set loadoptions DDISABLE_INTEGRITY_CHECKS"). It loaded-up and updated...but I saw no action in the panel as I surfed, so I assumed it wasn't working, and un-installed. A story on Neowin.net said that they had a Vista version, but the link led to a 404!, and there was no news on Phoenix labs site. So I sit and wait and ponder...........