Page won't load depending on where I click the cursor! Why?!

Hi! I have three portfolio pages on my website, each of which contains a gallery. The user must click on the thumbnails to be redirected to another page, but if you click within a certain area of the portfolio title, the screen goes grey and the page will not load. (see diagram here, or experience the frustration for yourself by going straight to the site: http://www.waffledaysahead.com).

Does anyone know why this is happening or how I can go about fixing it?

Thank you!
Rebeccah