iphoto not working for 5k
does anyone else have this problem? i just bought the 27inch desktop 5k display MAY 2015 and i can't open iPhoto or update it. apple store message says item not available in the u.s. store. i don't know if it's because this system is new and not compatible yet ? i'd like to enjoy my computer and everything it comes with ugh so frustrating anyway help! ty!
iMac with Retina 5K display, OS X Yosemite (10.10.3)