I think I may know what your problem is because I had it before. I'm guessing you installed a mod that hides loading messages? That's what caused it for me anyway IIRC.
It was probably http://www.tesnexus.com/downloads/file.php?id=1846. You can find a fixed version http://www.tesnexus.com/downloads/file.php?id=4988 if it was in fact that mod.
This.
I knew it was something I had loaded recently but I would have never guessed it was the "No more annoying messages" mod. Thank you very much for linking the fixed version, that is super helpful. =)
EDIT: Dang.. that one is actually not the same as the version I'm using, I use "No more annoying messages lite" which only takes out the "now loading" messages but doesnt touch the rest..:
http://www.tesnexus.com/downloads/file.php?id=2040
It would appear that one does not have a fix, though I messaged the guy who fixed the original version, likely he wont see it for a while it says he was last active almost a year ago..
Ah well. Thanks anyway =)