After installing Tracks on Dreamhost, I get this in both Firefox and IE:

http://www.contriving.net/ftpd/forums/ugly.JPG

How do I fix or troubleshoot this?

This means that your /public directory is not reachable. Are you running from a subdomain (i.e. tracks.mydomain.com) or from a subdir (i.e. mydomain.com/tracks). In the latter case, it could be you forgot to set the right subdir in /config/site.yml

I was running from a subdirectory in a subdomain.  The instructions weren’t clear that the subdirectory setting in site.yml should be commented out in this case.  I did this and now things are running great!