"Mac Help" in Finder problem

Hi,
Not a drastic problem but it's pretty annoying when I need to access Mac Help either in Finder or in any other application. Basically, if I click on the Help on the tool bar at the top and search for a topic, this works fine, but when I actually click the topic, it opens a window but the window is blank (no text)! sometimes it takes a few seconds to load the text (which I can live with) but sometimes it just doesn't load at all which is driving me crazy! Any help on how to solve this would be much appreciated.

If this helps, I am on Snow Leopard 10.6.8

 

anyone?!

 

Hey, sorry, i've been away for a while without internet access! And yeah that sounds exactly the same as my problem, have no idea why it does that! Any thoughts?