Cannot open static file if my IP is local

I run IIS on Windows 2008 R2 Standart Edition & bind IIS on a public IP. At my desktop PC, I cannot open any non-asp files if my IP is local -ie 192.168.35.45-

I can open

• http://mysite.com/test.asp

I cannot open

• http://mysite.com/test.css (same file, renamed)
• http://mysite.com/test.txt (same file, renamed)
• http://mysite.com/a-test-image.jpg

I can open all these files if I use ktunnel/proxy

I can open all these files if I use real IP in TCP/IP settings on my desktop

As you guess all links are accessible from the internet