Hyperlink problem

My website is http://www.LivingGreenReviews.com
On my Welcome page I have a have a hyperlink that links to the wrong page.
My hyperlink is http://livinggreenreviews.com/programmable-thermostat/ (a page ) but when I select it, it opens http://livinggreenreviews.com/thermostats/ (a post).
The page that should appear is there and it has the correct permalink
Can anyone tell me what I can do to figure this one out.
Thank you,
Marius