Layout images not appearing on ASP .NET

I am working with DHTMLX in the ASP .NET framework using MS Visual Studio 2010 as the IDE. When I build a layout and try to run the .aspx page on the localhost, the layout is created, but with all of the images (the collapsing arrows, bars, etc.). I tried again, this time specifying the image path, but it still did not work.

I did the same thing with a simple HTML page and it still wouldn’t work when I ran it in the IDE, but would work when I just ran it from the file system.

I was wondering if anyone has experienced a similar problem and may know a fix for this. Thanks.