WARNING: Do not attempt this without explicit written approval from your Kontera account manager. Using this method without approval from Kontera will probably get you banned. I’m just posting it so you know about it – maybe you can beg your account manager into allowing you to do it.
By default, Kontera’s In-Text links produce double-underlines – this is so that the In-Text Link Ads can be differentiated from “real” links so they don’t trick or fool your visitors, which might result in poorly converting clicks for advertisors.
Here is a little trick that will change those double-underlines into single-underlines (remember, do not do this unless you have written permission from Kontera):
Add the following line to your Kontera code, just below your var DC_AdLinkColor line:
var dc_single_line = 'yes';
Be sure to add the ; at the end. Save your changes and re-load your page and all your Kontera links will have a single underline instead of two. Don’t forget my warning at the top of this post.