Website is loading partially

I was having problems with certain pages in the backend of my site. This happens in multiple browsers (Firefox, Chrome, Safari). The website uses Zend Framework 1.11 and runs in a shared hosting environment (PHP, Apache)

When I try to load certain pages, Chrome just displays a blank page. It downloads HTML, but sometimes only partially. When I check my web inspector I see the following (see screenshot). Also, when I try to load the page through Chrome, I get the following error: "curl: (18) transfer closed with read data left left." (and indeed, only a portion of the HTML was loaded)

Screenshots:

• http://cl.ly/image/2K371a1p3Y3S
• http://cl.ly/image/442d2r1y2u2O
• http://cl.ly/image/3a1M060X182d
• http://cl.ly/image/0q1p17143F07
• http://cl.ly/image/2N2p3k0g3F1m
• http://cl.ly/image/2X371V1t093O

I also noticed that failed requests are not showing up in the Apache access / error logs.

Any help would be great!

Thank,

Martijn