session_start .... now pages randomly not loading??

This is a strange one. Any pages that call session_start() randomly don't load. If I click the a link I just get a blank page with the URL of the previous page I was at. Going back and doing this several times it will eventually load. Sometimes it works the first try, sometimes it takes 2, 3, 4 attempts before the page will load.

If I type the URL into the address bar it works fine. Now the really strange thing - this seems to only be a problem with IE. Mozilla seems to work ok (so far). Removing session_start() from the pages results in 100% solution of the problem.

Here's the link if anyone wants to check it out, try the membership link and see what happens. http://www.nvreefers.org

If anybody knows what's going on I'd appreciate some help!

No thoughts on this?

I did read the manual/session reference but nothing jumped out at me. There is no other php code on any of the pages at this point, other than a couple simple includes. As stated the problem only occurs when session_start is added to the page.

I could really use some help/suggestions here. The problem can be duplicated by visiting the link in the first post while using IE. Click the membership link (on the right side of page), if it seems to work go back and click it again, probably in the first few clicks you'll see what I'm seeing.