I'm having the same trouble with the icons showing only a blank page. I just updated my system to Yosemite, and have regretted every second of it due to all the programing issues it seems to have with every program I use. I upgraded mainly because I use Podium and the newest version of Podium Walker only functioned for Yosemite.

I'm very illiterate when it comes to programing jargon. What ended up being the fix for this?