Long posts are not being displayed in WordPress

My blog Inspirationbit.com was recently moved to a new server, within the same host (the old server constantly had connection issues). Two days ago I finally got a chance to change the Name Servers of my blog’s domain to point to the new server and after they got propagated and now point to the new server I’m having issues on my WordPress-based blog.

Everything seems to be working fine, except that some of my posts were getting displayed blank, with no content. After a couple hours of investigating, I discovered that I’m no longer able to publish long posts. As soon as I edited those old long posts and cut down the content there from 2800+ words down to 1400 (and 1828 in another), they get displayed. By adding just one extra character, the post shows up blank on the site. Here’s an example of such a post: http://www.inspirationbit.com/get-inspired-by-inspiration-bit/ I can see the content from the Admin panel, can edit it, but nothing shows up in a Preview, nor on the site.

I’ve contacted my host, but they have no idea how to help. I also found a similar problem and a solution to it on WordPress forum: http://wordpress.org/support/topic/123605

But I’ve tried it and it didn’t work for me.

I would appreciate any help I can get. What causes this word limit in my WordPress posts?

Thanks.