Zabbix frontend don't display any graph you select. In the apache2/access.log:

"172.16.1.1 - - [11/Mar/2014:02:27:15 +0100] "GET /zabbix/charts.php?ddreset=1&sid=cef5e3abf357653c HTTP/1.1" 200 4753 "http://172.16.1.100/zabbix/charts.php?ddreset=1&sid=cef5e3abf357653c" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.146 Safari/537.36"
172.16.1.1 - - [11/Mar/2014:02:27:15 +0100] "GET /zabbix/jsLoader.php?ver=2.2.2&lang=en_GB&showGuiMessaging=1 HTTP/1.1" 304 216 "http://172.16.1.100/zabbix/charts.php?ddreset=1&sid=cef5e3abf357653c" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.146 Safari/537.36"
172.16.1.1 - - [11/Mar/2014:02:27:15 +0100] "GET /zabbix/jsLoader.php?ver=2.2.2&lang=en_GB&showGuiMessaging=1&files[]=class.calendar.js&files[]=gtlc.js&files[]=flickerfreescreen.js&files[]=servercheck.js HTTP/1.1" 304 217 "http://172.16.1.100/zabbix/charts.php?ddreset=1&sid=cef5e3abf357653c" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.146 Safari/537.36"
172.16.1.1 - - [11/Mar/2014:02:27:16 +0100] "GET /zabbix/chart2.php?graphid=524&period=3600&stime=20150311012715&updateProfile=1&profileIdx=web.screens&profileIdx2=524&sid=cef5e3abf357653c&width=1776 HTTP/1.1" 500 347 "http://172.16.1.100/zabbix/charts.php?ddreset=1&sid=cef5e3abf357653c" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.146 Safari/537.36"
172.16.1.1 - - [11/Mar/2014:02:27:16 +0100] "POST /zabbix/jsrpc.php?output=json-rpc HTTP/1.1" 200 720 "http://172.16.1.100/zabbix/charts.php?ddreset=1&sid=cef5e3abf357653c" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.146 Safari/537.36"
"

At the apache2/error.log:

[Tue Mar 11 02:27:16 2014] [error] [client 172.16.1.1] PHP Fatal error: Call to undefined function DBin_node() in /var/www/zabbix/include/classes/class.cgraphdraw.php on line 132, referer: http://172.16.1.100/zabbix/charts.php?ddreset=1&sid=cef5e3abf357653c

Zabbix prerrequisites check are all OK.