Hyperlinks will not work on top line of a Page

I am having the strangest issue, and I hope someone can help. I am using WP E-Commerce, so I have Product Pages that behave just like pages, in addition to Pages and Posts. On each Product page, I want to insert a hyperlink at the very beginning of the text, directing the viewer to a separate page that contains a detailed, zoom-in version of the product. I had the link after the text, and it worked just fine, but I decided it would be more visible at the top. BUT . . . whenever I put a hyperlink into text at the very beginning, it shows in the editor but is not clickable on the live product page! I have successfully entered it ONLY by going down to the second line, thus always having a blank line of space at the top of each product description. Any thoughts as to how to fix this?