Hi, my preview in browser has been acting funny. It was working fine this morning, using the f12 hotkey, however it has stopped functioning. When the f12 hotkey is pressed, nothing happens, where before it would open some dialog boxes, and transfer files to testing server. The same (nothing) happens when I select preview in browser from the top menu bar. Additionally, browser lab will not funtion (cannot connect to Browser Lab). I have checked the Preview in Browser settings, nothing seems to work. Any suggestions?