I dowloaded recent upgrade Lightroom CC 2015 (haze filter etc.) to my desktop mac, no problem. On my macbook pro, I downloaded using installer and it seems to have frozen up after doing most of installing...it just says "finishing up" to the right side (in installer) and has been like that for two days, doesn't actually seem to be finishing up. I checked to see if installed or not and "haze" filter doesn't yet show.. Tried closing and reopened, still said "finishing up". How do I unfreeze it?