IM having this problem on my MAC the start page will not show its blank, Destinations is blank. events etc.. sometimes it shows breifly then goes away.. I did a clean install and the same issue. this also is happening in Firestorm for me.. I have Mac OS 10.10.1 yosemite. updated Java and flash still no joy.. any help would be great.. checked firewall ect.. if i go to the pages in a web browser it works fine. just the browser in SL seems affected.