Publishing NavImage

Hi,
I configure our publication. Everything seem to be fine exept our NavImage. They all have two back slash just before the filename and I don’t find why. When I preview the content list, the location is perfect. The problem is more the link too a NavImage in a page.

example :

<img class="logoHEC" src="//logoHEC.jpg" width="248" height="40" alt="Logo HEC Montréal" title="Logo HEC Montréal"/>

or

<img src="/programmes//banner_programmes_p2.jpg" alt="Image programme" title="Image programme" />

Can someone help me on this one ?

Regards,

G