FreePBX recordings doesn't play in AsteriskNOW1.5


I've installed AsteriskNOW 1.5 but CDR did not work. I had to install:

yum install asterisk-addons-mysql

I could see CDR but no voicemail/monitor recordings so I had to run apache as ‘asterisk’ user and group.

I’ve got Play links into Monitor column but when I click one of those links a blank window opens and no sound plays. I tried to change monitor folder rights as is told here: … recordings

But it didn’t work. Do you know why?