WP autoformat insert linebreaks after links

I’ve been working on this issue now for hours and hours. I’ve tried different themes (Lightword Theme/Twenty ten) but I can’t get WP *not to* do a line break after I insert a link in my text.

Take a look on my page: sccm.haas.se

There’s a link that says “According to Microsoft” <line break> … I don’t want it to do a linebreak and there’s nothing in the HTML-code that tells it to do it either.

I’ve tried plugins like “WP-No-Format” that disables autoformatting and that removes the line break but makes the text look funny (not the same font as the rest) instead.

How can this be so hard. I don’t get it.