Problem with relative url on visual studio 2013

Hello,

I have a website written in asp.net thats works perfect in visual studio 2010.

I decided to upgrade to visual studio 2013 and in the development enviorment it seems all relative path not loading.

When i run the website in the development webserver.

css like this one:

  .Btns_r, #btnDemo {
            color: Black;
            text-decoration: none;
            text-align: center;
            font-size: 13px;
            font-weight: bolder;
            float: left;
            margin-left: 120px;
            padding-top: 5px;
            padding-bottom: 3px;
            background-image: url(Images/general_button.png);
            background-repeat: no-repeat;
            height: 35px;
            width: 118px;
            border: none;
        }

The URL is not loading. Its so to all images in the website. Running in visual studio 2010 is ok.

What you think needed to be done? It looks like vs2010 is running another webserver than the vs2013.

The development enviorment is windows-7 64 bit.

Thanks,

Eitan, TevelSoft